Writing a Plugin for Persian Calendar (Hijri Shamsi)

[ardev0]

Hello,@
I want to create a plugin that replaces the Gregorian calendar with the Persian (Hijri Shamsi) calendar. The plugin should only modify the UI by converting and displaying dates in the desired format, without making any changes to the database.

Here are my questions:

1. Is it possible for a plugin to alter the structure of the calendar like this?
2. Can this be implemented in a way that all Gregorian dates displayed in the UI are converted and shown as Persian dates?

What is the best approach to achieve this? Do you have any suggestions or recommended solutions?

[marcelfolaron]

Thank you for the request. I would have to look into that. Right now (3.3) we are using jQuery UIs datepicker which does not have native support as far as I know. In 4.0 we are switching to https://flatpickr.js.org/localization/#using-modules
This seems to be able to support that format.