Check time

Inorder to accurately record and map images your coumputer clock must be on time. To check/set your comuter clock click on menu Tools -> Check time... From the dropdown list select the timeserver closest to you and press the Check button. At this point your computer clock is not changed. To apply the correct time click the Set button. An internet connection is required.

If your clock is off more than one hour it wont update the system clock!

Check time automatically

You can tell aptdecoder to update the time automatically in the General settings dialog. Navigate to tab Custom -> System and tick options as shown in the screenshot.