Changing date to Hijri Date on entire system

[AmirhosseinRzd]

Hi

In order to use SuiteCRM in Persian language, along with translation and RTL direction, we need Hijri date. Translation and RTL are being done But the date is a dilemma.

There is a PHP class which is used mostly in PHP-based projects here: http://github.com/sallar/jDateTime

[url=http://github.com/sallar/jDateTime]

jDateTime is a PHP class to convert dates from Gregorian calendar system to Jalali calendar system and vice versa. Supports dates beyond 2038.Jalali, also known as Shamsi or Hijri Shamsi is the Iranian calendar system.

[/url]

Now I need to know how to use this class in the entire system (in an upgrade-safe way if possible)?