How to Change Your iPhone to 24-Hour Clock Format

The article explains how to change an iPhone’s clock format from the default 12-hour cycle to a 24-hour format. This option, known as military time, helps prevent confusion between a.m. and p.m. It details the steps to toggle the feature on, enhancing clarity in time management.

RAYMOND OGLESBY @RaymondOglesby2
June 17, 2025 – 3 minutes read time

If you are in the US, your iPhone Clock app is automatically set to a 12-hour cycle. But did you know that you can change the time format on your iPhone? A 24-hour clock format, also known as military time, is a popular way to tell time worldwide.

Perks of the 24-hour time format include never accidentally setting an alarm for noon instead of midnight! If you already know how to change the time on your phone, you should have an easy time switching to a 24-hour clock. Let’s explore setting your iPhone to 24-hour format.

  • Get in sync with the rest of the world by using a 24-hour clock in the US.
  • If you mix up a.m. and p.m., make sure your alarms are set for the right time of day.

This tip should work on all versions of iOS, but the steps and screenshots below were captured on an IPhone 14 Pro running iOS 18.5.

CClick here to learn how to update your iPhone to the latest iOS version.

First, head to:

Settings > General > Date & Time

Refer to the image below:

Time 4
Accessing the Date & Time option

Next, toggle on 24-Hour Time. See the image below:

Time 5
Toggle on 24-Hour Time

Now, the time on your iPhone will be in 24-hour format. See the following image:

Time 6
Your Home screen time in a 24-hour format

Disclaimer

Technology is constantly evolving, and smartphone and desktop tech rarely remains static. Therefore, the information in this post is only accurate as of the date it was written. Blog posts that are older than six months may contain instructions that are no longer compatible with your device or operating system. We hope that the content from previous posts continues to function as intended. Thank you for reading TechSavvy.Life, where technology works for you.

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How to Make Taskbar Clock Display Seconds in Windows 10

Windows 10’s taskbar Clock can display the precise time down to the second. This feature requires a Registry hack to enable and only works on Windows 10.

RAYMOND OGLESBY @RaymondOglesby2
August 4, 2022

Windows 10’s taskbar Clock can display the precise time down to the second. This feature requires a Registry hack to enable and only works on Windows 10. Let’s find out.

This is for Windows 10

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Copyright Scott Adams, Inc./Distributed by Universal Uclick for UFS

Editing the Registry

Warning: The Registry Editor is a powerful tool and misusing it can render your system unstable or even inoperable. This is a pretty simple hack and, as long as you stick to the instructions, you should not have any problems. If you have never worked with the Registry Editor before, consider reading about how to use the Registry Editor before you get started. And definitely back up the Registry and create a System Restore point before making changes.

First, open the Registry Editor by clicking Start, typing “regedit” into the Cortana search box at the bottom of the Start menu, and pressing Enter. Give the Registry Editor permission to make changes to your PC. Refer to the below image:

Clock 1
Selecting the Registry Editor

Next, use the left sidebar to navigate to the following key in the Registry Editor:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced

See the below image:

Clock 2
Accessing the Advanced Key

Now, right-click the Advanced key in the left pane and select:

New > DWORD (32-bit) Value

See the following image:

Clock 3
Accessing the 32-bit DWORD

Next, name the value

ShowSecondsInSystemClock

and press Enter. If you type “Sustem” instead of “System” or “Second” instead of “Seconds” in the name, these will not work, it must be the exact wording. Refer to the below image:

Clock 4
Naming the new Key

Now, double-click the value you just created, enter a value data of 1, and click OK. See the below image;

Clock 5
Assigning the value of 1 to the new Key

Next, you can now close the Registry Editor. You will have to sign out and sign back in again before your changes will take effect. To view the Clock with seconds, view the Date and Time in your System Tray in the lower right-hand corner. See the following image:

Clock 6
The Clock with seconds in System Tray

Quote For The Day

Making duplicate copies and computer printouts of things no one wanted even one of in the first place is giving America a new sense of purpose.

Andy Rooney

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The author’s Vietnam eBook on the Battle for Tra Bong Vietnam: Events and Aftermath