The default clause uses clause of The Intl By the   Gregorian-in-in calendar   But the CAN of IT Also the use of the make OTHER calendars by Specifying a fifth parameter in the calls to IntlDateFormatterconstructor.  For So by the the default for LEO previous example Would the include a specification-in calendar like the the following.

$ DateTime = new DateTime ();
$ IntlDateFormatter = new IntlDateFormatter ( 'es_ES', IntlDateFormatter :: FULL, IntlDateFormatter :: FULL, 'Australia / Yancowinna', IntlDateFormatter :: GREGORIAN);
$ IntlDateFormatter- the echo> the format ($ a DateTime);  // Martes, 21 de julio de 2015, 11:12:43 pm (Hora estándar de central Australia) Should you wish to use another-in the CAN-in calendar of IT the BE the specified '' as with . with the part of the the locale of the the the following example with with in Decided I of of have to use the  Buddhist-in-in calendar . $ A = a DateTime a new a DateTime ();  


 https://en.wikipedia.org/wiki/Buddhist_calendar  


$ IntlDateFormatter = new IntlDateFormatter ( 'es_ES @ calendar = buddhist', IntlDateFormatter :: FULL, IntlDateFormatter :: FULL, 'Australia / Yancowinna', IntlDateFormatter :: TRADITIONAL);
$ IntlDateFormatter- the echo> the format ($ a DateTime);  // Martes, 21 de julio de 2558 the BE the, 11:16:08 pm (Hora estándar de central Australia) Notice The That of The I of the below of the below code have changed the the locale for the (first parameter) toes_ES = @ -in calendar and the buddhist-in calendar (fifth parameter) toIntlDateFormatter :: TRADITIONAL.





Of The of Calendars   the the ICU   Allows you to-the-play with the include:

• Japanese ( ) @calendar=japanese
• Buddhist (  )@calendar=buddhist
• Chinese (  )@calendar=chinese
• Persian (  )@calendar=persian
• Indian (  )@calendar=indian
• Islamic (  )@calendar=islamic
• Hebrew (  )@calendar=hebrew
• Coptic (  )@calendar=coptic
• Ethiopic (  )@calendar=ethiopic
  

There you have for So IT;  localised time zone aware dates with the PHP on the multiple-in calendar types.  The If the Provided your application formats suit the then the this is a simple way to the ensure your date and time information is readable in Various locations and languages.

in

The default uses clause Intl By the  Gregorian-in calendar  But IT CAN Also the make use of OTHER calendars by Specifying a fifth parameter in the calls to IntlDateFormatterconstructor. So by default the previous example would include a calendar specification like the following.

$ DateTime = new DateTime ();
$ IntlDateFormatter = new IntlDateFormatter ( 'es_ES', IntlDateFormatter :: FULL, IntlDateFormatter :: FULL, 'Australia / Yancowinna', IntlDateFormatter :: GREGORIAN);
echo $ IntlDateFormatter-> format ($ DateTime ); // Martes, 21 de julio de 2015, 11:12:43 p.m. (Hora estándar de central Australia)


Should you wish to use another-in calendar IT CAN the BE specified 'as with the part of the locale. The the following example with In I of have Decided to use the  Buddhist-in calendar .

$ A DateTime = new a DateTime ();
$ IntlDateFormatter = new IntlDateFormatter ( 'es_ES @ calendar = buddhist', IntlDateFormatter :: FULL, IntlDateFormatter :: FULL, 'Australia / Yancowinna', IntlDateFormatter :: TRADITIONAL);
echo $ IntlDateFormatter-> format ($ DateTime ); // Martes, 21 de julio de 2558 the BE, 11:16:08 p.m. (Hora estándar de central Australia)


Notice The That I of the below code have changed the locale for the (first parameter) toes_ES = @-in calendar and the buddhist-in calendar (fifth parameter) toIntlDateFormatter :: TRADITIONAL.


Calendars of The  the ICU  Allows you to-play with the include:

• Japanese ( @calendar=japanese)
• Buddhist ( @calendar=buddhist)
• Chinese ( @calendar=chinese)
• Persian ( @calendar=persian)
• Indian ( @calendar=indian)
• Islamic ( @calendar=islamic)
• Hebrew ( @calendar=hebrew)
• Coptic ( @calendar=coptic)
• Ethiopic ( @calendar=ethiopic)
  

So there you have it; localised time zone aware dates with PHP on multiple calendar types. If the provided formats suit your application then this is a simple way to ensure your date and time information is readable in various locations and languages.

Добавьте несколько методов в класс \Bitrix\Main\Type\Date
А именно
DateTime::modify


DateTime::Diff
DateTime::setDate
А то работать очень не удобно. Я, допустим, очень привык работать с классом \DateTime
А когда в нем не оказалось метода modify, я был разочарован.
Я понимаю что, можно использовать метод  Date::createFromPhp(), но это очень неудобно.

Прошу добавить метод modify(), наследуемый от \DateTime в
\Bitrix\Main\Type\Date (\bitrix\modules\main\lib\type\date.php)