Open your device’s built-in Date & Time settings to correct its clock. First check whether the date or time is wrong, or whether the clock is accurate but showing the wrong time zone: automatic date/time and automatic time-zone detection are often separate controls. If you need to set a value yourself, turn off the corresponding automatic option first.
First, identify what is wrong
If the clock is off by minutes or shows the wrong date, check the automatic date/time setting. If the displayed hour is wrong by a whole time-zone difference, check the time-zone setting separately. A device can have the correct underlying time but display the wrong local hour because it selected the wrong zone.
Automatic settings are usually easiest for everyday use and travel, but they depend on the device’s network and, on some devices, location services. Manual settings offer direct control, but you must update them yourself when the date, time, or zone changes. Menu names and availability vary by model, software version, carrier, and region.
How to change the time and date on an iPhone, iPad, or Apple Vision Pro
Set the date and time automatically
- Connect the device to the internet.
- Open Settings > General > Date & Time.
- Turn on Set Automatically. Apple says this sets the date and time based on the time zone.
For automatic time-zone detection on iPhone, check Settings > Privacy & Security > Location Services > System Services > Setting Time Zone. If a message says new time-zone information is available, restart the device and any paired Apple Watch. See Apple Support’s date and time instructions.
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Set the date, time, or time zone manually
- Open Settings > General > Date & Time.
- Turn off Set Automatically.
- Choose a time zone, or tap the date to edit the date and time.
The automatic option may be unavailable with some carriers or in some regions. It can also be dimmed by a Screen Time passcode or a corporate profile.
How to change the time and date on a Mac
Use automatic date, time, and time zone
Connect the Mac to the internet, then open Date & Time settings and enable both automatic date/time and automatic time zone. If the time zone does not update, check Location Services and the time-zone or system-customisation options under System Services, then restart the Mac.
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Enter values manually
In Date & Time settings, switch off both automatic date/time and automatic time zone before entering the date, time, or zone. Apple’s instructions are at Apple Support.
How to change the time and date on an Android phone or tablet
Use Android’s Clock settings
- Open the Clock app.
- Tap More > Settings > Change date and time.
- Turn on Automatic date and time to get the time automatically.
- If available, turn on Automatic time zone as well.
To choose a time zone yourself, open Change date & time, disable automatic setting if it is on, and select Time zone. Android devices differ: some use location to determine the zone, some only support location-based zone setting, and some do not offer automatic time-zone selection. Follow Google’s Android date and time instructions for the general path.
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On a Samsung Galaxy device
Samsung Galaxy phones may instead use Settings > General management > Date and time. Samsung says automatic date and time uses the mobile network, and the available controls can vary by model. See Samsung Support’s date and time guidance.
How to change the time and date in Windows 10 or Windows 11
- Open Start > Settings > Time & language > Date & time.
- For network-set time, turn on Set time automatically. To enter the date or time yourself, turn it off and select Change.
- For automatic zone detection, turn on Set time zone automatically. To select a zone manually, turn it off and choose a zone from the menu.
Microsoft says daylight-saving changes happen automatically when automatic time-zone selection is on. When it is off, you can enable the separate daylight-saving control or adjust the time manually. See Microsoft’s Windows date and time settings guide.
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Windows 10 support ended on October 14, 2025. The settings steps may still apply, but that operating-system version no longer receives support from Microsoft.
How to change the time on an Apple TV or other smart TV
Apple TV HD and Apple TV 4K
On Apple TV HD and Apple TV 4K running tvOS 10 or later, open Settings > General > Date & Time and turn on Set Automatically. For a manual zone, turn that option off, then go to Settings > General > Time Zone. Apple’s instructions are on Apple Support.
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Android TV and Google TV
TV menu paths depend on the model and software. Sony documents layouts that include Device Preferences > Date & time, as well as other platform-specific paths. A VPN network environment can also make a TV’s displayed time differ from the location. If the generic path does not match your screen, use the manufacturer’s instructions for your exact model. See Sony’s date and time guidance.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to change the time on a Wi-Fi router or smart appliance
TP-Link routers
For the TP-Link router instructions documented by the manufacturer, sign in to the router’s web interface and open Advanced > System Tools > Time Settings. Depending on the model and firmware, you can get time from the internet, set the date and time manually, choose a local time zone, and configure daylight-saving start and end. TP-Link also documents controls in the Tether app under the router’s More > System section. See TP-Link’s time settings guide.
Samsung appliances
Samsung says a Family Hub refrigerator defaults to the current date and time when connected to Wi-Fi and provides a separate guide for its clock. Samsung range clocks may need to be set again after a power outage. Other appliances have their own controls, so check the instructions for the specific product at Samsung Support.
Why is my device still showing the wrong time?
- Check whether it is the clock or the zone. Confirm the date/time and time-zone controls independently; one may be automatic while the other is manual.
- Check the connection used for automatic time. Apple instructs users to connect an iPhone, Mac, or Apple TV to the internet. Samsung says Galaxy automatic time depends on the mobile network.
- Check location access when zone detection uses location. On iPhone, check the Setting Time Zone system service. Android’s use of location varies by device and settings.
- Turn off the relevant automatic control before manual editing. Some devices hide editable fields until automatic mode is disabled.
- Check restrictions if an Apple control is dimmed. Carrier or regional availability, Screen Time, or a corporate profile can limit the setting.
- For TVs and routers, use model-specific support. A VPN can affect a TV’s apparent local time; a router’s system time can affect time-based features such as parental controls.
Official troubleshooting details are available from Apple, Google, Samsung, Sony, and TP-Link.
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Why an accurate date and time matter
Samsung Support warns: “Many apps and websites will not operate correctly, and you may see security warnings, if the time and date is not accurate.” Apple Support also cautions: “Making manual adjustments to time settings in order to change app behaviour (like game timers) isn’t recommended.”
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