June 2025
Beginner to intermediate
1180 pages
37h 48m
English
Content preview from Linux
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14.3 Date and Time
Due to the international networking of computers, the use of a worldwide standardized time is required. On Linux computers, Coordinated Universal Time (UTC) is the measure of all things or time. This is the successor of the better-known Greenwich Mean Time (GMT).
When you save a file, it saves not the current local time, but a time converted to this international standard. If you then view the file using ls -l, the time is converted back to the local time at the computer's location. This procedure makes it possible to determine, for example, which file is more current: a file saved at 6:00 p.m. local time in Munich or a file saved at 12:30 p.m. local time in New York.
The time setting during the computer startup is mostly ...
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