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Local date and time implementation

1.1.0 2019-02-10 14:13 UTC

This package is auto-updated.

Last update: 2022-04-10 21:54:43 UTC


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LocalDateTime is a lightweight wrapper around PHP's own DateTime object, allowing for smooth work with local date, time and date time without worrying about time zones. Each temporal object allows the same ways of comparision, modification and formatting as the underlying DateTime object.

Additionally this library comes with a wrapper around IntlDateFormatter, specifically aimed to format local temporals. For ease of integration, Doctrine types for these temporals are provided as well.


Install via composer:

$ composer require dasprid/local-date-time

Getting started

There are three temporal objects supplied:

  • DASPRiD\LocalDateTime\LocalDate
  • DASPRiD\LocalDateTime\LocalTime
  • DASPRiD\LocalDateTime\LocalDateTime

All of these are constructed in a similar fashion through named constructors. For simplicity, the following examples illustrate working with the LocalDate object.


A LocalDate object can be constructed in multiple ways:

use DASPRiD\LocalDateTime\LocalDate;

$date = LocalDate::createFromNow();
$date = LocalDate::create(2019, 12, 31);
$date = LocalDate::createFromFormat('Y-m-d', '2019-12-31');
$date = LocalDate::createFromDateTime(new DateTime('2019-12-31'));

When creating a LocalDate from a DateTime object, it will be interpreted in the time zone the DateTime object is set to. If you wish to interpret it in a different time zone, you must change it on the DateTime object beforehand.


As said before, the LocalDate supports the same modification methods as a regular DateTime object:

  • ::modify(string $modify) : self
  • ::add(DateInterval $interval) : self
  • ::sub(DateInterval $interval) : self

When a modification contains units not meant for temporal (e. g. hours for a LocalDate), it will be applied to the underlying DateTime object and afterwards removed. For instance:

use DASPRiD\LocalDateTime\LocalDate;

$date = LocalDate::create(2019, 12, 31);
$newDate = $date->modify('-1 hour');

// $newDate will now be 2019-12-30, with the internal DateTime time reset to 00:00:00


Comparision works exactly the same as with DateTime objects, except that since PHP code cannot override comparators, the following methods were made available:

  • ::compare(self $other) : int
  • ::isBefore(self $other) : bool
  • ::isAfter(self $other) : bool
  • ::isEqual(self $other) : bool
  • ::diff(self $other, bool $absolute = false) : DateInterval


Formatting also works the same as you are used to. Depending on the temporal object, specific formatting characters are not supported and will be returned as is. For instance, no local temporal supports time zone information, and a LocalDate cannot return any time information.

use DASPRiD\LocalDateTime\LocalDate;

$date = LocalDate::create(2019, 12, 31);
echo $date->format('d.m.Y');

// Outputs: 31.12.2019

To format a temporal in a specific locale other than English, you will need to use the IntlLocalDateFormatter, which requires ext-intl to be installed. To format the above date in a German locale, you'd do the following:

use DASPRiD\LocalDateTime\LocalDate;
use DASPRiD\LocalDateTime\IntlLocalDateFormatter;

$date = LocalDate::create(2019, 12, 31);
$formatter = IntlLocalDateFormatter::dateFormatter('de-DE', IntlDateFormatter::FULL);
echo $formatter->format($date);

Doctrine integration

To use the local temporals with Doctrine, the following Doctrine types are supplied:

  • DASPRiD\LocalDateTime\Doctrine\LocalDateType (name: localdate)
  • DASPRiD\LocalDateTime\Doctrine\LocalTimeType (name: localtime)
  • DASPRiD\LocalDateTime\Doctrine\LocalDateTimeType (name: localdatetime)