Learn How to Change Your Phone's Date and Time

Understanding Your Phone's Date and Time Settings

Every smartphone contains an internal clock that tracks the current date and time. This clock affects many functions on your device, from displaying the correct time on your lock screen to stamping when you send messages and take photos. Your phone typically sets the date and time automatically through a connection to your mobile carrier or Wi-Fi network, which receives time information from atomic clocks maintained by organizations like the National Institute of Standards and Technology (NIST). However, there are situations where you might need to manually adjust these settings—perhaps you're traveling to a different time zone, your phone didn't update automatically, or you're resetting your device.

Your phone's operating system handles date and time data through what's called the system clock. This clock runs continuously, even when your phone is off, powered by a small battery inside the device. The time zone setting tells your phone which region's local time to display, and the date format setting determines how the date appears on your screen (such as MM/DD/YYYY or DD/MM/YYYY). Different regions use different date formats, which is why this setting matters for clarity.

Understanding these basic components helps you navigate your phone's settings menu with confidence. When you change your date and time, you're essentially telling your phone what the current moment is and where you are in the world. This information flows through all your apps and services, affecting notifications, reminders, and timestamps on your data.

Practical Takeaway: Before making changes, identify whether your phone should update automatically (which most phones do) or if you need to manually set the time. Check your phone's current settings to see if automatic updating is enabled, as this is the default configuration for most users.

How to Change Date and Time on Android Devices

Android phones from manufacturers like Samsung, Google Pixel, OnePlus, and others follow similar paths to access date and time settings, though the exact menu names may vary slightly between versions. The most common route involves opening your Settings app, which you'll find on your home screen or in your app drawer. Once in Settings, look for a menu option labeled "System," "About phone," or "Date and time"—the naming depends on your phone's manufacturer and Android version.

To manually change the time on most Android devices, start by opening Settings and navigating to System or Date and time. You'll typically see a toggle for "Automatic date and time" which you should turn off if you want to make manual changes. Once disabled, additional options will appear on your screen, including fields where you can tap to adjust the hour, minute, and sometimes the second. Similarly, there will be a field for the date that you can modify by selecting the month, day, and year. Some phones present these in a calendar picker interface, while others show numerical input fields.

The time zone setting appears separately in most Android menus. Look for an option labeled "Select time zone" or simply "Time zone." Tapping this reveals a list of available time zones organized by region and major cities. If you're in New York, you'd select "Eastern Time" or "America/New_York." If you're in London, you'd select "Greenwich Mean Time" or "Europe/London." This setting is crucial because it determines which local time your phone displays.

After making your changes, return to the main Settings menu and verify your adjustments. You should see the updated time displayed in your status bar at the top of your phone's screen. Some Android versions also show a 12-hour versus 24-hour time format option in this same menu, allowing you to customize how time appears throughout your device.

Practical Takeaway: Write down the time zone name for locations you visit regularly, as this speeds up future adjustments. Most Android users should re-enable automatic date and time after manual adjustments, as this prevents timing issues with apps and services.

How to Change Date and Time on iPhone and iOS Devices

iPhones and iPad tablets running iOS or iPadOS use a straightforward process for adjusting date and time settings. Begin by opening the Settings app, which displays a gear icon and typically sits on your home screen. Scroll down through the Settings menu until you locate "General." Tap General, then look for an option called "Date and Time." This section contains all the tools you need to modify your device's temporal settings.

Within the Date and Time menu, you'll see a toggle labeled "Set Automatically." When this toggle is turned on (showing green), your iPhone or iPad receives time information from your mobile carrier or Wi-Fi network and adjusts automatically. To make manual changes, tap this toggle to turn it off. Once disabled, new options appear, including an editable field showing your current date and time. Tap on this field to open a picker interface where you can spin through months, days, years, hours, and minutes using scrollable wheels.

The time zone setting on iOS appears as a separate option within the Date and Time menu, typically labeled "Time Zone." When you tap this option, your device shows a search field where you can type the name of a city or region. As you type, matching time zones appear below. For example, typing "Denver" shows "America/Denver," and typing "Tokyo" shows "Asia/Tokyo." This search feature is particularly useful when you're unfamiliar with official time zone names. You can also scroll through an alphabetical list if you prefer browsing rather than searching.

iOS also includes a 24-Hour Time toggle within this same menu. When enabled, your device displays time in military format (such as 14:30 instead of 2:30 PM). This setting affects how time appears in your clock app, notifications, and throughout your device. After making any changes, close the Settings app, and your adjustments take effect immediately.

Practical Takeaway: iPhone users traveling internationally should note the time zone name or major city for their destination. Re-enabling automatic date and time after returning home prevents your phone from displaying incorrect times and keeps calendar events properly scheduled.

Troubleshooting Common Date and Time Problems

Sometimes after changing your date and time settings, you might notice problems with your apps, notifications, or email. A common issue occurs when the date and time are set incorrectly, causing your phone to believe it's a different date than it actually is. This can prevent email from downloading, security certificates from validating, and apps from updating. If you experience these problems, return to your date and time settings and verify that the information is accurate. Check your device against a reliable source like a clock on the wall, a computer, or a trusted website.

Another frequent issue involves time zone confusion. Your phone might display the correct time but the wrong time zone label, or it might show a time that's off by several hours. This typically happens when a phone's automatic time zone setting fails to update after traveling. The solution involves turning off automatic updates, manually selecting the correct time zone, and then re-enabling automatic updates. After re-enabling, wait a few minutes for your phone to connect to the network and confirm the correct time zone.

If your phone's clock seems to run fast or slow—where the time gradually drifts away from the actual time throughout the day—this usually indicates a hardware issue rather than a settings problem. In this case, restarting your phone sometimes resolves the issue by resetting the internal clock. Power off your phone completely, wait ten seconds, and power it back on. After restarting, your phone should re-synchronize with network time servers. If the problem persists, it may indicate a failing internal battery or clock circuit, and you should contact the phone's manufacturer or a repair service.

Occasionally, calendar events or reminders fail to trigger at the expected time after you've adjusted date and time settings. This happens because apps depend on accurate system time to schedule notifications. Restarting your phone clears the app cache and forces your device to recalculate when notifications should occur. Additionally, opening each affected app and checking its notification settings can reveal whether the app itself has disabled notifications or set them to a different time zone.

Practical Takeaway: Keep a checklist of symptoms when troubleshooting time issues: incorrect time display, failed email downloads, missed notifications, or certificate errors. This helps you isolate whether the problem stems from date/time settings or from a different cause entirely.

Daylight Saving Time and Seasonal Time Changes

Daylight Saving Time (DST) affects how your phone displays time in many parts of North America, Europe, and other regions around the world. Twice per year—typically in spring and fall—regions practicing DST shift their clocks