How to switch between 12-hour and 24-hour time on a OnePlus

Device

Android

Shown on

OnePlus Nord 5 (CPH2709), OxygenOS 16.0.5.1201, Android 16

App

Settings

Path

Settings › System & update › Date & time

Real screenshots

4 of 4 steps

Checked

October 2026

Sources

1 official, linked below

Step by step

1. 

   Open Date & time

   Open Settings, System & update, Date & time.

   Done

2. 

   Tap Time format

   It is the first row: 24-hour on ours.

   Done

3. 

   Pick one

   12-hour (1:00 PM) or 24-hour (13:00).

   Done

4. 

   Check the clock

   With 12-hour, the status bar showed 8:34 instead of 20:34.

   Done

If you do not see this option

• Older OxygenOS? OnePlus's OxygenOS 14 manual uses Settings, Additional settings, Date & time, Time format. On ours it is System & update. Source: OxygenOS 14.0 User Manual
• Time wrong? Set time automatically is on the same page.

If this does not work

• Lock screen still 24-hour? Lock the phone again after changing.
• Wrong time zone? Check Set time zone automatically.

About this guide

The clock format is a choice, not a switch, on OxygenOS 16.

The screenshots are from our OnePlus Nord 5 with OxygenOS 16.0.5.1201 and Android 16, in Dark mode. Ours was 24-hour. We tried 12-hour and set 24-hour back.

Good to know

Check for software updates on a OnePlus.

In short: Settings, System & update, Date & time, Time format.