Regarding to: https://xenforo.com/community/threads/shamsi-or-jalali-calendar-for-xenforo.105051/#post-1041771
Hope to see Persian Calendar or date system (that it called Shamsi or Jalali) one day in XF core.
I also attach a php file of all functions needed to create our date or calendar...
Here is Translation to Persian, of xenforo itself and lots of useful add-ons. Below you can see a list of important add-ons that are included in this translation:
[Nobita] Social Groups (Teams/Guilds/Clubs) 2.4.6
CTA Featured Threads 2.17.0
FAQ Manager by Iversia 3.2.0
[HA] Paygate: ZARINPAL
1. Add support for Zarinpal as a pay gate
2. Add support for Toman currency
*. You must have [bd] Paygates 1.4+ installed.
1. Upload the library directory into your XenForo's
2. Import the add-on
3. Configure pay gate options in User Upgrade...