When working with Axxon Next, the user can choose the type of calendar used (Gregorian or Persian).

To select the interface language, complete the following steps:

1. Go to Settings → Options (1) → Regional settings (2).
   

2. Select the calendar type that is used in Axxon Next from the calendar drop-down list (3). 

3. Click Apply to save the changes.
4. Restart Axxon Next.

The newly selected calendar type will be applied once Axxon Next is restarted.