Where to find the time settings on Windows and Mac

On Windows, the fastest way is to click the time in the bottom right corner of your screen. A small window will pop up showing the date and time. Click "Change date and time settings" at the bottom of that window, and you'll land in the Settings app where you can adjust both.

On Mac, click the clock in the top right corner, then select "Date & Time Preferences" from the menu. This opens System Settings directly to the date and time controls.

Both operating systems also let you reach these settings through the main Settings or System Preferences menu if the clock shortcut doesn't work — Windows users can search "date and time" in the Start menu, and Mac users can open System Settings and search for "date and time" there.

Key Takeaways

  • Click the time in your system tray (Windows) or menu bar (Mac) to open a quick window where you can access full date and time settings.
  • Most computers are set to update the time automatically from the internet, so you may only need to turn this feature on rather than entering the time manually.
  • If automatic time sync is off, you can type in the exact time and date yourself, but this usually only matters if your internet connection is broken.
  • Changing the time zone is a separate setting from changing the actual time, and you may need to adjust it if you travel or move.

Turning on automatic time updates

Your computer can update its own time by connecting to internet time servers, and this is almost always the right choice. On Windows, in the Date & Time settings, look for a toggle labeled "Set time automatically." If it's already on (the switch will be blue or highlighted), your computer is already syncing and you don't need to do anything else.

On Mac, open Date & Time Preferences and check the box next to "Set date and time automatically." Once this is on, your Mac will pull the correct time from Apple's servers without you lifting a finger.

Automatic sync is reliable and means you'll never have to think about it again — even if your computer was off for weeks, it will correct itself the moment it connects to the internet.

Manually setting the time if automatic sync is off

If automatic updates are turned off and you need to set the time yourself, Windows and Mac both let you type in the exact time and date. On Windows, click "Change" next to the date or time field in Date & Time settings, and a new window will open where you can use the calendar and clock to pick the right moment. On Mac, click the lock icon in Date & Time Preferences to unlock the settings, then click the date and time fields to edit them directly.

You'll need to enter the time in 24-hour format on some systems and 12-hour format on others — the interface will show you which one is expected. After you've entered the time, click "OK" or "Done" to save the change.

Manual time-setting is rarely necessary in modern computing, since internet sync handles it automatically. You might need it only if your internet is down and your computer's clock has drifted noticeably.

Changing your time zone

Your time zone is separate from the actual time. If you've moved to a different region or your computer is showing the wrong time even though the automatic sync is on, the time zone setting may be wrong. On Windows, in Date & Time settings, scroll down to "Time zone" and click the dropdown to select your region from the list.

On Mac, in Date & Time Preferences, make sure "Set time zone automatically using current location" is checked. If it's off, you can click the dropdown next to "Time zone" and search for your city or region name.

Changing the time zone will shift all the times on your computer — your clock, your calendar events, and your email timestamps — so make sure you're picking the zone where you actually are or where you want your computer to operate.

What to do if the time keeps resetting

If you set the time manually and it keeps reverting to the wrong time, automatic sync is probably turning back on and pulling the time from the internet. Check whether "Set time automatically" is enabled on Windows or "Set date and time automatically" is checked on Mac. If it's on and the time is still wrong, your time zone setting is likely incorrect — fix the zone first, then turn automatic sync back on.

If the time drifts slowly over days or weeks rather than jumping suddenly, your computer's internal clock battery may be failing. This is a hardware issue that usually requires a technician to replace, but it's rare on modern laptops. On desktop computers, the battery is a small coin-shaped cell inside the case that can sometimes be replaced by the user — check your computer's manual or contact the manufacturer for guidance.

Syncing time across multiple devices

If you use a Windows PC, Mac, phone, and tablet, they can all stay synchronized without any action from you. Each device pulls the time from the internet independently, so as long as automatic sync is on for each one, they'll all show the same time. You don't need to sync them to each other.

The one exception is if you're using an older computer that's been offline for a very long time — when it reconnects to the internet, it may take a few moments to fetch the correct time from the server. This usually happens within seconds, but occasionally takes a minute or two.

Frequently Asked Questions

Why does my computer show the wrong time even though automatic sync is on?

The time zone setting is probably wrong. Your computer is syncing correctly, but it's displaying the time in the wrong region. Open Date & Time settings and check that your time zone matches where you actually are. Once you fix the zone, the displayed time will jump to the correct moment.

Can I set my computer to a different time zone without changing the actual time?

No — changing the time zone will shift all displayed times on your computer. If you need your calendar and clock to show a different zone than where you are, some applications like Outlook or Google Calendar let you display multiple time zones, but the system time itself will always reflect your selected zone.

What happens to my calendar events and emails if I change the time zone?

Calendar events and email timestamps are stored with time zone information, so they'll adjust automatically when you change your system time zone. An event scheduled for 2 p.m. in New York will show as 11 a.m. if you switch your computer to Pacific time, but the actual moment it occurs won't change.

Do I need to restart my computer after changing the time?

No, time changes take effect when ready. You don't need to restart, and you won't lose any open work. Some applications may need to be closed and reopened to see the new time in their interface, but the system time updates right away.

Is it safe to turn off automatic time sync?

It's safe, but not recommended. Automatic sync keeps your computer accurate without any effort from you. The only reason to turn it off is if you're troubleshooting a specific problem, and you should turn it back on as soon as you're done.