Xiaomi
Set Default Event Duration in Calendar auf Xiaomi
The default event duration decides how long a new calendar entry lasts before you manually adjust the end time. On Xiaomi phones this value is stored per account, so a personal calendar and a work calendar can each run with a different length.
To check or change it, open Calendar ➔ Menu ➔ Settings ➔ General ➔ Default event duration. From there, Choose an Account and then Set the Default event duration for that specific account.
If you have more than one account synced, repeat the same steps for each one. Skipping this means only the first account you set gets the new value, while the others keep the old default.
Depending on the device, the calendar app shown here may be Mi Calendar or Google Calendar. Google Calendar accounts often list slightly different duration options than local Xiaomi accounts, since the values come from the account provider, not from MIUI itself.
This setting only affects events created after the change. Existing entries in your calendar keep their original length.