For some reasons, I want to have the same thing as DateTime (or something close), but with microseconds precision (that I would convert to float when inserting inside the JSON files). DateTime is a PHP dateTime object, which provides an OO approach to working with date/time values, plus a lot of sophisticated tools (since PHP 5. Then, when converting from seconds, it would divide in that order, each time taking the modulo of the previous operation, until only <60 seconds. Date Format is a built-in function in PHP that formats a date and time. The cool thing about this classes is, that it considers different timezones, leap years, leap seconds, summertime, etc. MySQL datetime: The DATETIME type is used for values that contain both date and time parts. 以下のメソッドで使われます。この書式は他とは大きく見た目が異なりますが、非常にシンプルなので理解に困ることは無いでしょう。 DateInterval::__constructThe string representation of the interval must follow a specific format. Specifies the format. DateTime::createFromFormat — Parses a time string according to a specified format. This will. 10 [2019-02-06 08:20 UTC] techouse at gmail dot comBe careful with functions like strtotime() that try to "guess" what you mean (it doesn't guess of course, the rules are here). For now I am using this code to find the diffeencePHP DateInterval. PHP Collective Join the discussion This question is in a collective: a subcommunity defined by tags with relevant content and experts. Just an example to include the end date using the DateTime method 'modify'echo "<br>". I would note that using DATE_ISO8601 produces a date string which is slightly different than ISO8601 (the colon is missing in the TZ, ISO8601 expects times to be all with OR all without the colon, not a mixture) - date('c') does produces a strict ISO 8601 valid date - This could cause hard to trace bugs if code expects a strict ISO 8601. Stack Overflow. How to validate dates without leading zero on day and month? 1. I'm trying to subtract 15 minutes from the current time. Two days is P2D. Twig seems not recongnize the "%l" format to display minutes with leading zero. PHP code demo Try this solution you can change from one month to another month (not year) and then check. 2. which object you call diff() from). timezoneの設定とDateTimeクラスの使い方について書いてます。. . I assumed you were starting with user input that you would use to create the DateInterval. A PHP interval is also used for the storage of a relative time string in a specific format which is supported by the constructor of the DateTime object. Why does date object diff on month reset to 0 after 12 months?Create a Seconds-Only PHP DateInterval by Leonel Elimpe. DateTime has several. I don't want to use cron on Linux/Unix/BSD box or Scheduled Tasks on Windows. Because the returned value is a DateInterval object, date_format() cannot be used to format the result. PHP Collective Join the discussion. So "5 minutes" instead of " 0 hours, 5 minutes"For now I don't care about timezones and just want to have a correct calculated value of how many days are between two dates. 4 answers. 4. DateInterval::format (PHP 5 >= 5. Nota: . 4. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. DateTime::setTimestamp() - Sets the date and time based on an Unix timestamp DateTimeImmutable::setTimestamp() - Sets the date and time based on a Unix timestamp DateTimeInterface::format() - Returns date formatted according to given format ＋add a. DateInterval::format. The foreach cycle goes at first through years, then months, then days, etc. The DateInterval object, returned by date_diff stores each period of time separately, seconds, minutes, hours, days, months and years. Viewed 2k times. Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the companyNote you don't need DateInterval, as DateTime (like strtotime()) takes relative phrases as an argument, so you can just do something like new DateTime('+15 minutes'); – Alex Howansky Nov 2, 2022 at 15:39Let's say I have a date in the following format: 2010-12-11 (year-mon-day) With PHP, I want to increment the date by one month, and I want the year to be automatically incremented, if necessary (i. TL;DR do not use UNIX timestamps. 3. This function is especially useful when you want to display dates and times in a specific format, or when you need to manipulate date and time values. However, there is a lot of DateTime functionality that is simply not exposed procedurally, eg: properly modifying the timezone on a DateTime object. DatePeriod::getRecurrences — Gets the number of recurrences. 5. Output: 00-0-1 22:0:0 In this example we created two DateTime objects. Lengthy solution but hopefully works correctly, putting explaination. 31 years, 6 months, 14 days Code language: PHP (php) Check out all the DateInterval format parameters. Don't put relative data into files, put absolute data into files and let the decoding application do the math later, on demand. Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the companyWhile being the most BC-safe option, this would be completely different to the rest of the PHP date APIs. Looking at said DateInterval::format, you'll see: R Sign "-" when negative, "+" when positive r Sign "-" when negative,. The characters mentioned in the table below can be used in the format parameter string. DateTimeImmutable::add() - Returns a new object, with added amount of days, months, years, hours, minutes and seconds DateTimeImmutable::diff() - Returns the difference between two DateTime objects DateTimeImmutable::modify() - Creates a new object with modified timestamp ＋add a noteDateInterval::format() with "%F" sometimes shows incorrect value by 1us: Submitted: 2017-04-01 01:35 UTC: Modified: 2020-09-01 12:48 UTC: Votes: 1: Avg. 0, PHP 7, PHP 8) The DateInterval helps in storing a fixed time interval. Table of Contents. This is what I need: is the current time/date in the recurring interval. PHP DateInterval create split second (microsecond or milisecond) interval. Date and time manipulation is an unavoidable part of programming; there will inevitably be a part of a project that requires a date to be modified. If its not the first day of the week get the first day of that week with strtotime "last sunday" (or monday) for the first date. Right now, they are either warnings/errors, or plain “Exception” or “Error”. Before PHP 5. I use the function DateInterval to extract years, mounths, days, hours, minutes and seconds and convert its into seconds. The DateInterval::format() method does not recalculate carry over points in time strings nor in date segments. 0. format: Required. Find centralized, trusted content and collaborate around the technologies you use most. In this quick tip, I will show you how to add days to a date in PHP using the DateInterval class. There are three methods that can modify the value of a DateTime instance: add, sub and modify. EDIT:I tried to add +2 hours to date function visualization in php (wordpress). This class extends PHP’s DateInterval class. In this summary of PHP Add Days To Datetime, We’ve only talked about the add() method, which is used to add something like days or years to a PHP date. Here is a small part of my code to calculate the datetime difference: date_default_timezone_. Stack Overflow help chat. class CustomDateInterval extends \DateInterval { public function __toString() { // Reading all non-zero date parts. As commented by @Álvaro González on my other answer that objects in many languages behave some what different than what we think when passing objects between different variables. net. f. The duration cannot be negative. 1. Add a comment. PHP DateInterval format minutes and seconds with leading zero. 日付文字列で生成. diff () returns a DateInterval which has a public days property. days. Share. Just to expand on previous answers, a function to do this could work like this (changing the time and interval formats however you like them according to this for function. 5. 1. 1. 0, PHP 7, PHP 8) DateInterval::format — Formats the intervalcheckdate() date_add() date_create_from_format() date_create() date_date_set() date_default_timezone_get() date_default_timezone_set() date_diff(). Php Class 'DateInterval' not found. This effectively makes the interval (14 + 2 + 1 = ) 17 days and 1 hour. This code get next Monday and decrease it for 1 week. DateInterval::format() - Formats the interval DateTime::add() - Modifies a DateTime object, with added amount of days, months, years, hours, minutes and seconds DateTime::sub() - Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime object The DateInterval::format() method does not recalculate carry over points in time strings nor in date segments. Introduction. なぜなら "32 days" のようにオーバーフローした値は "1 month and 4 days" から "1 month and 1 day" までのどれとでも解釈可能だからです。. Comparing PHP DateInterval. The iterator seems to check the time as well as the date, it excludes the end element if the time in the endDate is less that or equal to the time in the start date. DateTime::add () Adds an amount of days, months, years, hours, minutes and seconds to a DateTime object. Daylight Savings Time Bug (PHP < 8. Even with DateInterval though you'll have to do some calculations, since it'll break down an interval into days and hours. echo $diff->format ("Total number of days: %a. Parameters ¶ format Return Values ¶ Returns the formatted. When using DateInterval() to create an interval you use M for minutes, not i. Calculate total seconds in PHP DateInterval. Relative format listing of DateInterval::createFromDateString also does not mention any fraction of a sec. When doing difference between DateTimeInterface objects, DateInterval object will be returned. I used a new DateTime in the example to demonstrate the point, but for now assume DateTime is returned from some opaque API that I can't just call over again. It seems when creating time-only DateInterval objects, we have to use T too, instead of just P. Example. This code will work well in any day of week. In this quick tip, I will show you how to add days to a date in PHP using. 4. 3. If you do, be prepared should its 98. Part 1: Why is the result 6? The dates are simply strings when you first subtract them. To format the DateInterval object, we'll need check each value and exclude it if it's 0:PHP has no operator overloading* so + with objects makes PHP trying it to convert them to string first, but DateInterval does not support that:. e. Score:. You can't simply convert this kind of duration to Datetime in PHP . As an experienced developer, I know I can reach for PHP's built-in date-time classes or one of the libraries built off of them. Do not use time(). DateInterval::format » « DateInterval::__construct . Note that DateInterval is available only since PHP 5. DateInterval::format() - Formatea el intervalo DateTime::add() - Añade una cantidad de días, meses, años, horas, minutos y segundos a un objeto DateTime DateTime::sub() - Sustrae una cantidad de días, meses, años, horas, minutos y segundos de un objeto DateTime1. The format you can use on DateInterval. DateTime::__construct — Returns new DateTime object. If I chose 05 Aug 2015 as start date and 17 Oct 2015 as end date, then my array output should be divided in 3 arrays: 1st array for 05 Aug 2015 - 31 Aug 2015; 2nd array for 01 Sept 2015 - 30 Sept 2015; 3rd array for 01 Oct 2015 - 17 Oct 2015; We can achieve this thing by php DateInterval. Some of the options are: d - The day of the month in the range of 01 to 31;. PHP DateInterval create split second (microsecond or milisecond) interval. So you should probably do something like this:Calculate recurring interval from start date. Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the companyDateTimeInterface::format; マニュアルに十分な説明があるので、具体例の紹介は割愛します。 時間の入力書式. It can be used to perform various operations on intervals, such as adding or subtracting intervals. here is my code so far (does. DateTimeInterface::getTimestamp — Gets the Unix timestamp. Indeed 22-09-2008 will be parsed as 22 September 2008, as it is the only reasonable thing. Use the DateTime class to do any date calculations now that PHP 5. DatePeriod::getDateInterval. By default, the date is displayed by applying the default timezone (the one specified in php. The task is to convert DateTime to String using PHP. One of the key-points of PHP 5 OOP that is often. なぜなら "32 days" のようにオーバーフローした値は "1 month and 4 days" から "1 month and 1 day" までのどれとでも解釈可能だからで. Here's what you want with the help of this objects:format: This is a mandatory parameter that specifies the output date string format. (PHP 5 >= 5. During daylight savings changes 24 hours is not the same as 1 day, which PHP will arrange for you with the proper timezone configuration. There are many other special characters to specify the output for the date() function. The format is as follows: PnYnMnDTnHnMnS. I suspect that your PHP is set to a different timezone than +0800. 注意: . Adds the specified DateInterval object to the specified DateTime object. Follow edited Sep 2, 2015 at 8:44. This is expected because it is not possible to overflow values like "32 days" which could be interpreted as anything from "1. It also provides the static method, which accepts the input strings and sets up a DateInterval from the. Don't print zeros. DateTimeInterface::format — Returns date formatted according to given format. Collectives™ on Stack Overflow. Datetime is of the format Y-m-d H:i:s. PHP date interval - wrong month difference. So, as. Updated. You don't have DateTime's anymore, you have interval, and intervals are formatted different as DateTime objects. DateTime::setTime — Legt die Uhrzeit fest. 2. To include those, we simply use the hour, minute and second properties available on the DateInterval object and convert them into seconds as shown in the example above. format character Description Example values % Literal % % Y: Years, numeric, at least 2 digits with leading 0: 01, 03: y: Years, numeric: 1, 3: M: Months, numeric, at least 2 digits with leading 0: 01, 03, 12: m. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. In this example, the difference between two dates is divided into years, months, and days as part of the PHP calculate days between two dates mechanism. DatePeriod::getStartDate — Gets the start date. But it wont return the number of seconds. PHP check for not > 0. 4 instead of FALSE you will receive -99999 upon accessing the property. date_interval_format() 関数は、DateInterval::format() のエイリアスです。 DateInterval::format() 関数は、間隔をフォーマットするために使用されます。DateInterval::format (PHP 5 >= 5. Unlike using strtotime() this will account for daylight savings time and leap year. In the Format method, we can convert the DateTime object to a string. PHP | date_create(), date_format(), date_add() Functions; PHP | date_create_from_format() Function; PHP | date_date_set() Function;. I'm trying to subtract 15 minutes from the current time. php Object of class DateInterval could not be converted to string. It will return php DateInterval object. The procedural version takes the DateTime object as its first argument. I believe this involves converting the string to a date object. - GitHub - sudopeople/php-float-interval: Create PHP DateInterval objects from floating point numbers for va. invert. $date1=date_create ("2013-01-01"); $date2=date_create ("2013-02-10"); $diff=date_diff ($date1,$date2); // %a outputs the total number of days. You will get the result object, which you can loop thru to get the desired dates between the 2 dates:The format specifier is the same as supported by date, except when the filtered data is of type DateInterval, when the format must conform to DateInterval::format instead. The DateTime::add() function is an inbuilt function in PHP which is used to add an amount of time (days, months, years, hours, minutes and seconds) to the given DateTime object. Otherwise. . This is expected because it is not possible to overflow values like "32 days" which could be interpreted as anything from "1 month and 4 days" to "1 month and 1 day" . Why does the 1st DateInterval Object return the value as [d] => 222 and the 2nd DateInterval Object as [days] => 62? What needs to be changed in order for the "222" to appear in the "[days]" tag? phpYou can then use the date Twig filter to format the DateInterval in the view. @bozdoz It's not a question of which method is "better". Don't manually build json docs, I can't imagine what you think json_encode() is for, but it's for building the entire object. I have a duration in ISO format witch I need to convert it into seconds number. Method compare makes a value comparison. DateTime::__construct — Returns new DateTime object. modify accepts a string in one of the standard recognized formats. Parameters ¶ format Return Values ¶ Returns the formatted interval. Notas. I have extended the php class. I built on Glavic's answer to add some extra features that I needed;. PHP DateInterval - 30 examples found. Creating. For procedural style only: A DateInterval object. Just click on “download zip” or do a git clone. I've included examples for both DateTime and DateTimeImmutable as per the comment made, you don't need to assign the outcome of modify to a variable because it mutates the original object. Like every time I ask for help, I cannot stop trying and I generally find the answer right after. The format is as follows: PnYnMnDTnHnMnS. PHP DateInterval format minutes and seconds with leading zero. In this article, we'll discuss how to use PHP's built-in DateTime classes to perform some basic operations on DateTime data. This is expected because it is not possible to overflow values like "32. This article does that, replacing as much as possible the principles and examples of the original article on a 1:1 basis. 6 and 5. The following example adds 1 year 2 months to the date 01/01/2021:It looks like PHP 5. As you have already said yourself , you tried to get duration from Youtube API. But still not correct. 2. Tags. DateTime::add — Adds an amount of days, months, years, hours, minutes and seconds to a DateTime object. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. publicado por Pablo López en Tutoriales el 1 de febrero de 2022. One easy way to get the number of days is to create a DateTime at zero time, add the interval to it, and then get the resulting timestamp: Properties recurrences. B. PHP Terms → . NOTE: This approach does not work for intervals less than a day with time-zones that recognize DST, due to a known issue with dates and the DST hour changes. Collectives™ on Stack Overflow. Your output probably doesn't say days = -10 days, but something like days = -10ays. You can also use PHP’s DateTime object to subtract hours from a given date and time. 5. DATE_INTERVAL_ISO8601 ): Most in line with the DateTime API, but probably requires special case handling in format code. Let's see some practical examples of the date() function now. The DateTime to string. To use an ISO-8601 format string like P7D , you must use the constructor. You also need to call ->format('%d') where you're building the sql statement. Jan - June 2015, July - Dec 2015, Jan - June 2016. See DateInterval::format () . Following example demonstrates the usage of the date_add() function −If there are more days in the current month, than the month being landed on, the excess overflows to the following month. 10):Here is the working code for you: You should use DatePeriod which takes start-date, date interval, and end-date as arguments. -Summary: DateInterval timezone bug +Summary: DateInterval reports incorrect interval when when a UTC+01:00 or greater is used-PHP Version: 7. MySQL retrieves and displays DATETIME values in 'YYYY-MM-DD HH:MM:SS' format. This should be used here and no detour via date, gmdate or DateTime should be taken. Description: ----- From PHP 7. 3. This RFC proposes to introduce Date/Time extension specific exceptions and errors where this makes sense. Zusammenfassung. Info and examples on DateInterval::format PHP Function from Date and Time - Date and Time Related Extensions. The DateInterval class is useful for storing a. PHP date_interval_format() Function. with the option to ask follow-up questions in a conversational format. Both methods accept a DateInterval class instance as the argument that specifies the amount of time added to or subtracted from a DateTime instance. Right now, they are either warnings/errors, or plain “Exception” or “Error”. « date_interval_create_from_date_string. DateTime::setTimezone — Legt die Zeitzone für ein DateTime-Objekt fest. The DateInterval::format() method does not recalculate carry over points in time strings nor in date segments. Nota: . Whether you're preparing for your first job interview or aiming to upskill in. DatePeriod::getEndDate — Gets the end date. Which should strip out the nebulous "months and remainder days" and leave only the "total days", which gives consistent results across all current PHP versions. Out of scope of this RFC is changing and improving. The setDate method will give the Date object an extra day. It uses the "natural" order of the variables in php DateInterval class. class CustomDateInterval extends DateInterval { public function __toString() { // Reading all non-zero date parts. See Also. A duration is the continuous portion of time between two datepoints expressed as a DateInterval object. Even if today is Monday. ini may be pointing to something incorrect. The date () function is a simple and easy-to-use function for getting the current date and time. 5 which returns a new DateTime object for every method call instead of updating it (slower). how to convert php date format to 3 arguments-1. The Overflow BlogTrying to create a list or date interval for the past 2 years, divided into ranges of 6 months, i. The Overflow Blog The DateInterval::format() method does not recalculate carry over points in time strings nor in date segments. 123456 sec? interval_spec of DateInterval::__construct. In essence, it does not accord for the day of the month. $i = new DateInterval('P1D'); $i = DateInterval::createFromDateString('1 day'); $i = new DateInterval('P2W'); $i = DateInterval::createFromDateString('2 weeks'); $i = new DateInterval('P3M'); $i = DateInterval::createFromDateString('3 months'); Specifically, the relative formats supported by the parser used for DateTimeImmutable, DateTime, and strtotime() will be used to construct the DateInterval. Stack Overflow is leveraging AI to summarize the most relevant questions and answers from the community, with the option to ask follow-up questions in a conversational format. 1 min read September 30, 2020. DateTime handles time-of-day, not time intervals. It doesn't matter if the object is the one diffed or doing the diffing (i. You can rate examples to help us improve the quality of examples. A workaround to add the T portion of the duration of the ISO 8601 standard and not need to default as P0M, is to insert 2 additional checks after the P0Y replaced by Y. This is expected because it is not possible to overflow values like "32 days" which could be interpreted as anything from "1 month and 4 days" to "1 month and 1 day". Why it's not a bug: The current behavior is correct. As Carbon extends DateTime it inherit its methods such as diff() that take a second date object as argument and returns a DateInterval instance. I would like to calculate with PHP the start and end datetime of an event. If a DateInterval object was returned, you can check the 'invert' property to see if the second date is before the first date or not. DatePeriod::getDateInterval. Calculate the interval between two dates, then format the interval: <?php. 1. DateTime::__construct () Returns new DateTime object. So I tried the following code: The DateInterval::format() method does not recalculate carry over points in time strings nor in date segments. So "m" in the proposed solution will never be bigger than 12. Find centralized, trusted content and collaborate around the technologies you use most. eg: Suppose datetime is 2013-03-20 14:20:00. A date interval stores either a fixed amount of time (in years, months, days, hours etc) or a relative time string in the format that DateTime 's constructor supports. josh dot love at verizon dot net. PHP DateInterval format minutes and seconds with leading zero. DateInterval doesn't accept ISO 8601 timeperiod with milliseconds. DateTimeWidgetBase: Creates the basic UI and ensures that the date is using the correct timezone. Difference. Each format character must be prefixed by a percent sign (%). Take a look at the DateInterval constructor manual page to see how to construct other periods to add to your date (2 days would be 'P2D', 3 would be 'P3D', and so on). Is 1 if the interval represents a negative time period and 0 otherwise. Otherwise, days will be FALSE. 2. " Each duration period is represented by an integer value followed by a period. If the DateInterval object was created by DateTime::diff(), then this is the total number of days between the start and end dates. Below programs illustrate the DateTime::sub () function in PHP: Program 1: This program uses DateTime::sub () function to subtract 2 days from given date object. DateTime::sub — Subtrahiert eine Anzahl von Tagen, Monaten, Jahren, Stunden, Minuten und Sekunden von einem DateTime-Objekt. Nobody offered a DateTime object solution yet, so I will. 日付の差. Since version 4. e. . 表示形式 (フォーマット)の変更. Using PHP’s DateTime object to subtract hours from a date. 0825% reliability fail you. 3. Example. I can't find that anymoreVer también. This function accepts an interval and a format string as parameters and, formats the given interval in the specified format. If the duration contains time elements, that portion of the specification is preceded by the letter T . No exception this time. In case of failure, this function returns the boolean value false. This is expected because it is not possible to overflow values like "32 days" which could be interpreted as anything from "1 month and 4 days" to "1 month and 1 day". From the Carbon documentation:. DateInterval::format (PHP 5 >= 5. 3. There are some very good answers here but none of them covered my needs. Calculate the interval between two dates, then format the interval: <?php. What you can do with this function/method is a great example of the philosophy: "just because you can do it doesn't mean you should". Datetime format as string not object-2. Otherwise, days will be FALSE. Calculate business days. Introduction. – [2009-06-19 17:19 UTC] pierre dot inglebert at insa-rennes dot fr Description: ----- DateInterval::format method just returns the parameter given. This function accepts an interval and a format string as parameters and, formats the given interval in. Data/Example: Today : 2013-07-16 12:37 Event Data : Start Date : 2012-04-03 12:30 Interval : 2 Interval Type : week. Twig : DateInterval format minutes with leading zero don't work. Constructors Duration::create. PHP Collective Join the discussion This question is in a collective: a subcommunity defined by tags with relevant content and experts. 51k; asked Mar 26, 2014 at 13:45. Using DateTime::diff() function. For example, the user can sele. Example #1 Parsing valid date intervals <?php // Each set of intervals is equal. Example if you need to display the time of 5 minutes and 2 seconds by showing a leading zero (05:02). So this definately changed things. DateTime will return itself or false on failure for every method call. Find centralized, trusted content and collaborate around the technologies you use most. days. This does not allow for catching Date/Time exceptions as they are not specific enough. DateTime — The DateTime class. For example, Friday 12/5 + 3 business days = Wednesday 12/10. I'm trying to create a simple function which returns me a date with a certain number of subtracted days from now, so something like this but I dont know the date classes well:What is the simplest way to get the difference in days between two PHP DateTimes, considering midnight as a day change (just like the DATEDIFF(DAY) SQL function does)?. DateInterval::format() - Formatea el intervalo DateTime::add() - Añade una cantidad de días, meses, años, horas, minutos y segundos a un objeto DateTime DateTime::sub() - Sustrae una cantidad de días, meses, años, horas, minutos y segundos de un objeto DateTime @user5267736, the DateTime format is the same, but when you use diff(), you're returning a DateInterval object, not a DateTime object. This is expected because it is not possible to overflow values like "32 days" which could be interpreted as anything from "1. Find centralized, trusted content and collaborate around the technologies you use most. Collectives™ on Stack Overflow – Centralized & trusted content around the technologies you use the most. The code can be made shorter if you desire. There are some valid values as examples : 'now' (the default value) 2017-10-19; 2017-10-19 11:59:59; 2017-10. DateTime::diff () - Returns the difference. When using the ISO 8601 duration format, T is the time designator that precedes the time components as explained here. Note that use only previous month would result in a behaviour similar to -1 month. 1, 7. Number of microseconds, as a fraction of a second. 0. 3 build (at least on Windows, it always returns the same 6015 value). When I run your code I get the result 2017-10-25 12:22:23. If the DateInterval object was created by DateTimeImmutable::diff () or DateTime::diff (), then this is the total number of full days between the start and end dates. answered Sep 2, 2015 at 8:09. epoch time), a DateTime object, and a string. Program 2: This program uses DateTime::sub () function to subtract the given interval from date object. If you are not so familiar with the spec of DateInterval like PT12H30M you can proceed with more human readable way using DateInterval::createFromDateString as follows : When putting in the method format the parameters 'i' and 's' in lowercase, when the value to be displayed is less than 10, put a single digit. Improve this answer. Adding and Subtracting Dates and Times . Says DateInterval format is wrong. strtotime produces a Unix timestamp as an integer which is helpful if you are for example sorting dates in php. { { datetime|format_datetime (locale='en', timezone='Pacific/Midway') }} If the date is already a DateTime object, and if you want to keep its current. Collectives™ on Stack Overflow. Example. 1 Answer. DateTimeImmutable isn't available until php 5.