The timezone or region is taken from the current carrier network. When you connect to a network on the other side of the world, the timezone is also automatically adjusted. We can also change it manually on our Xiaomi smartphone. To do this, we disable the automatic timezone and select another timezone if desired.

Note: In this guide we will disable the network-provided timezone and select a different region with its timezon. The mentioned steps are for illustration purposes only.

Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Additional settings
Step 3:  Tap on  Date & time
Step 4:  Disable  Use network-provided time zone
Step 5:  Tap on  Select time zone
Step 6:  Tap on  Region
Step 7:  Choose a  region
Step 8:  Choose the  time zone
  1. Open the Settings
  2. Tap on Additional settings
  3. Tap on Date & time
  4. Disable Use network-provided time zone
  5. Tap on Select time zone
  6. Tap on Region
  7. Choose a region
  8. Choose the time zone

Xiaomi Instructions