Giving the users more calendar options other than just Georgian

[hadi-f90]

Need Statement

Allowing user to use their own native language in user interface, changing the order of YY, MM, DD HH:MM:SS in system date and time and/or the locale for typing is a good idea, but not enough. There are many countries that use calendars date and time systems other than Georgian e.g. Ethiopian, Hebrew, And Persian Calendars.

Possible feature(s) for the Need

Using any calendar and time other than default Georgian one in Pantheon default Calendar app, date and time dock widget, and for showing file date info in File Manager and in general anywhere data and time is used in the Pantheon and specifically the OS itself can be really helpful and attractive feature for end users and companies.