Android smartphones offer extensive customization options for date and time formatting. Many users prefer the 12-hour clock (AM/PM) instead of the 24-hour military format. Some users also want the time to appear with a leading zero, such as 01:12 PM instead of 1:12 PM, especially on lock screens, Always-On Displays (AOD), widgets, or digital clocks.

The first requirement (12-hour format) is supported by nearly every Android device. However, the second requirement (displaying a leading zero before single-digit hours) depends on the Android version, manufacturer, launcher, clock widget, and theme. Stock Android usually does not allow changing this behavior through Settings.

This guide explains everything you need to know.

Understanding Time Formats

24-Hour Format

Examples:

• 00:30
• 08:45
• 13:20
• 22:55

Advantages:

• No AM/PM confusion
• Preferred in military
• Common in Europe
• Used by hospitals and aviation

12-Hour Format

Examples:

• 12:30 AM
• 08:45 AM
• 01:20 PM
• 10:55 PM

Advantages:

• Easier for everyday users
• Popular in USA
• Common in India
• Familiar AM/PM notation

How to Change Android to 12-Hour Format

Method 1: Using Android Settings

Open

Settings

↓

System

↓

Date & Time

↓

Disable

Use 24-hour format

or enable

Use 12-hour format

Depending on Android version, the wording may differ.

Method 2: Samsung Galaxy Phones

Open

Settings

↓

General Management

↓

Date and Time

↓

Turn OFF

Use 24-hour format

Method 3: Xiaomi (MIUI / HyperOS)

Settings

↓

Additional Settings

↓

Date & Time

↓

Disable

Use 24-hour format

Method 4: OnePlus

Settings

↓

System Settings

↓

Date & Time

↓

24-Hour Format

↓

OFF

Method 5: Motorola

Settings

↓

System

↓

Date & Time

↓

24-Hour Time

↓

OFF

Method 6: Google Pixel

Settings

↓

System

↓

Date & Time

↓

Use 24-hour format

↓

OFF

How to Display Time as 01:12 Instead of 1:12

This is where many users become confused.

Changing from:

1:12 PM

to

01:12 PM

is not controlled by the normal Date & Time settings.

Instead, it depends on:

• Clock application
• Launcher
• Lock screen
• Clock widget
• Android skin
• Theme engine
• Manufacturer customization

Does Android Have a Built-in Setting?

Unfortunately,

No.

Stock Android does not provide a setting to:

✔ Add leading zero

or

✔ Change hour formatting.

Why Some Phones Show 01:12 Automatically

Some manufacturers intentionally use:

01:12
02:15
03:45

while others show

1:12
2:15
3:45

This formatting is hardcoded into the clock widget.

Samsung One UI

Some Samsung lock screen clock styles display

01:12

Others display

1:12

Changing the clock style may change the formatting.

Go to

Settings

↓

Wallpaper and Style

↓

Lock Screen

↓

Clock Style

Try different clock styles.

Xiaomi HyperOS / MIUI

Themes may include different clock designs.

Some display

01:12

Others display

1:12

Changing the theme can change the format.

Google Pixel

Pixel phones generally show

1:12

There is currently no official option to change this.

Motorola

Motorola generally follows Google's implementation.

No option is available.

OnePlus

Clock formatting depends on OxygenOS version.

Some lock-screen styles support leading zeros.

Others do not.

Using Third-Party Clock Widgets

If you need complete control, install a custom clock widget.

Popular choices include:

• KWGT Kustom Widget Maker
• Chronus
• DIGI Clock Widget
• Digital Clock Widget

Most allow custom time formatting.

Example pattern:

hh:mm

displays

01:12

while

h:mm

displays

1:12

Understanding Formatting Codes

Many clock apps use these patterns:

Notice:

hh

adds a leading zero.

h

does not.

Rooted Android Devices

Advanced users can modify:

• SystemUI
• Clock resources
• XML layouts

This requires:

• Root access
• Magisk
• Custom ROM
• System modifications

Not recommended for most users.

Using Custom Launchers

Some launchers support custom clock widgets.

Examples:

• Nova Launcher
• Smart Launcher
• Niagara Launcher

When paired with KWGT, they can display:

01:12 AM

exactly as desired.

Using Always-On Display (AOD)

Manufacturers often provide multiple clock styles.

Changing the AOD clock style may switch between:

1:12

and

01:12

depending on the theme.

Can Google Clock App Change This?

No.

The Google Clock app only controls alarms, timers, stopwatch, and world clocks.

It does not change the lock-screen or status-bar clock format.

Does Changing Region Help?

Usually not.

Changing region affects:

• Date format
• Week start day
• Language
• Calendar

It normally does not add a leading zero to the hour.

Can Themes Change It?

Yes.

Samsung Themes

Xiaomi Themes

Custom ROM themes

often include different clock layouts.

Can Widgets Display Leading Zero?

Yes.

Most advanced widget apps allow:

01:05
01:20
08:30

instead of

1:05
8:30

Common Problems and Solutions

Best Recommendations

For Samsung Users

• Disable 24-hour format.
• Try different Lock Screen clock styles.
• Explore Samsung Themes if you want a different clock appearance.

For Xiaomi Users

• Turn off 24-hour format.
• Test different themes that include alternate clock layouts.

For Pixel Users

• Switch to 12-hour format.
• If you need a leading zero, use a customizable clock widget such as KWGT or DIGI Clock Widget.

For Other Android Phones

• Look for lock screen or Always-On Display clock style options.
• If unavailable, install a widget that lets you choose the hh:mm format.

Conclusion

Switching your Android phone to the 12-hour AM/PM format is straightforward through the Date & Time settings on almost every device. However, displaying the hour with a leading zero (01:12 instead of 1:12) is usually not a built-in Android setting. That behavior is determined by the phone manufacturer, clock style, or widget.

If your device does not support it natively, the most practical solution is to use a customizable clock widget that supports the hh:mm format or, on supported phones, choose a different lock screen or Always-On Display clock style.

Frequently Asked Questions (FAQ)

1. How do I change Android from 24-hour to 12-hour time?

Go to Settings → System (or General Management) → Date & Time, then turn off the Use 24-hour format option.

2. Can I display 01:12 instead of 1:12 on all Android phones?

No. Most stock Android devices do not provide a setting for leading zeros. It depends on the device, theme, or widget.

3. Why does my Samsung phone show 1:12 instead of 01:12?

The display format depends on the selected lock screen or Always-On Display clock style. Trying a different style may change the formatting.

4. Does the Google Clock app let me change the hour format to 01:12?

No. The Google Clock app does not control the system clock display on the lock screen or status bar.

5. Which format code displays a leading zero?

Use hh:mm. The h:mm format omits the leading zero.

6. Can I change the clock format without installing another app?

Only if your phone's manufacturer provides alternate clock styles or themes. Otherwise, no.

7. Will changing my phone's language or region add a leading zero?

In most cases, no. Language and region settings rarely affect the hour's leading zero.

8. Which widget apps support 01:12 formatting?

Apps such as KWGT Kustom Widget Maker, Chronus, DIGI Clock Widget, and Digital Clock Widget support custom patterns like hh:mm.

9. Does rooting my Android phone allow full clock customization?

Yes. Root access can enable deep system modifications, but it is intended for advanced users and may affect warranty, security, or system updates.

10. Is 12-hour or 24-hour format better?

It depends on preference. The 12-hour format is common in the USA and India, while the 24-hour format is widely used in Europe, aviation, healthcare, and military settings.

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