How to change the calendar from Western calendar to Japanese calendar (Reiwa)?

This concludes the explanation of how to change the Windows 11 calendar from the Western calendar to the Japanese calendar (Reiwa). There are multiple ways to launch Control Panel, so if you’re interested, check out How to Launch Windows 11 Control Panel. Other Windows 11 settings and usage are summarized, so please refer to it.

Change the display from the Western calendar to the Japanese calendar (Reiwa) Windows 10 Change the date from the Western calendar to the Japanese calendar (Reiwa) Mac Change the calendar from the Western calendar to the Japanese calendar (Reiwa)