Real Daylight Cycle Add-on 1.21+

Set the real time in the Minecraft world with the mod Real Daylight Cycle. It offers precise time adjustment by GMT or manually. The day and night cycle can now operate according to your actual time zone, and access to settings is available even on low-end devices.

By default, the add-on is set to the GMT 00:00 time zone. You will then be prompted to enter the clock menu. This requires an item that can be crafted or simply enter the settings menu with the command /scriptevent tcc_rdc:settings.

Next, you need to select the configuration type: automatic or manual.

For automatic configuration, choose a time zone and enable the toggle.

You can also set the time manually.

For access to admin settings, enter the command /scriptevent tcc_rdc:admin.