Windows 7 Tutorial

Change the time on your computer (system clock in Windows 7)

When you first setup Windows 7 on your computer, you had to go through a wizard that, among other things, asked you to pick a time zone and the current local time. And, by default, Windows 7 will automatically adjust its system clock to match your regional Daylight Saving Time settings. So, in practical terms, you will rarely have to adjust your system clock, unless you travel, for example, in which case you'll probably want to change your clock to adjust to the local time (a separate tutorial explains how to prevent Windows 7 from automatically adjusting its time).


Adjust the time in the system clock

Follow these steps to change the clock's time on your PC:

Tip: if you want to know the exact current time in your time zone, just go to the website and pick your time zone. This is the official US time, synchronized with the atomic clock in Boulder, CO. The time precision of an atomic clock may be overkill, but at least you'll know exactly what time it is in your area! For the exact time outside the US, please see the Greenwich Mean Time (GMT) website and select your country / time zone:

Caveat - You can change the time as often as you want or need, but keep in mind the following: when you save or edit files on your computer, the timestamp showing when the file was created or last edited will use the system clock: this means that if you change your time one way, a file may look like it was created or edited in the future, and likewise, if you move your clock back the other way, it may look like a file is older or more recent than is actually the case!

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