Time, date, time zone, and daylight-saving time settings can be configured in the Settings app in Windows. To set these settings in Windows, select the desired task from the following list: To set the date and time automatically, make sure the option Set time automatically is switched On.

Learn how to use the world time clock in the Alarms & Clock app in Windows.

Customers who want to update the time zone by using registry files must fully test the solution before they deploy it. In many countries, the start dates and end dates for daylight saving time (DST) change from year to year.

Time Zone is set to (GMT+02:00) Cairo. The Automatically adjust clock for daylight saving changes check box is selected. This problem occurs because the information in the registry for this time zone is incorrect. The reference data is stored in the following subkey:

Fixes an issue in which system date and time cannot be changed by Control Panel. This issue occurs if the RealTimeIsUniversal registry entry is enabled in Windows 7 SP1, Windows Server 2008 R2 SP1, or Windows Embedded 7 SP1.

Time, date, time zone, and daylight-saving time settings can be configured in the Settings app in Windows. To set these settings in Windows, select the desired task from the following list: To set the date and time automatically, make sure the option Set time automatically is switched On.

Keep your laptop or tablet plugged in and make sure the volume on your device is high enough to hear the alarm or timer. To respond to an alarm, select Snooze, or Dismiss the alarm to stop it entirely. If you need to change the time zone of your clock, go to Settings > Time & language > Date & time.

Learn how to change the clock from 12-hour format to 24-hour format.

Learn how to use the world time clock in the Alarms & Clock app in Windows.

Select Start and select Clock from the app list or type its name into the search box. Select Stopwatch (if necessary, select Toggle navigation to open the menu first) and then select Start . To mark a lap or split as the stopwatch runs, select Laps / Splits (the flag, in the image below).