How to turn on 24-hour time on a Xiaomi phone (HyperOS 3)

Device

Android

Shown on

Xiaomi Redmi Note 15 Pro 5G (25080RABDG), HyperOS 3.0.308.0, Android 16

App

Settings

Path

Settings › Additional settings › Date and time

Real screenshots

6 of 6 steps

Checked

October 2026

Sources

3 official, linked below

Step by step

1. 

   Open Date and time

   Open Settings and tap Additional settings. Date and time is the first row under System settings.

   Done

2. 

   Find 24-hour format

   Time format is at the top of the page, with one switch: 24-hour format. It was on on ours, and the Time row below said 08:36.

   Done

3. 

   Turn the switch off or on

   Tap the switch. With it off, ours showed the Time row as 8:36 am. Turn it on again for the 24-hour clock.

   Done

4. 

   Check the time

   The Time row is the quickest check: 8:36 am with the switch off, 08:36 with it on.

   Done

5. 

   Check the home screen

   With the switch off, our home screen clock read 8:36.

   Done

6. 

   After turning it back on

   Back on 24-hour format, the same clock read 08:37.

   Done

If you do not see this option

• Three choices instead of a switch? Xiaomi's guide gives Settings, Additional settings, Date & time, Time format, with 12-hour (1:00 PM), 24-hour (13:00) or Auto (based on system language). Its REDMI 13C 5G page also shows three formats. Ours had a single 24-hour format switch. Source: How to choose time format? · Source: How to set the time format on the REDMI 13C 5G?
• Lock screen clock looks different? The lock screen clock style is a separate setting. For MIUI 14, Xiaomi says it is under Settings, Lock screen, and that you can't change it when Dual clock is on or with third-party themes. See our guide on how to customise the lock screen clock. Source: How to set the Lock screen clock format on a MIUI 14 phone?

If this does not work

• Status bar looks the same? In the morning it may. Ours read 8:36 at the top left with 24-hour format both on and off. Check the Time row or the home screen clock instead, or look again after 1 pm.
• Time is wrong, not just the format? Check Automatic date and time is on. On ours it was, so the Date and Time rows were greyed out.
• Wrong time zone? Check Set time zone automatically and Use location for time zone under Time zone. Both were on on ours, which showed Central European Summer Time GMT+02:00.

About this guide

Your Redmi can show the time as 13:00 or 1:00 pm. It is one switch on the Date and time page.

The screenshots are from our Redmi Note 15 Pro 5G with Xiaomi HyperOS 3.0.308.0 and Android 16, in Light mode. 24-hour format was on. We turned it off for the pictures and back on again.

Good to know

Alarms use the same clock: how to set and delete an alarm on a Xiaomi phone.

In short: Settings, Additional settings, Date and time, 24-hour format switch.