

For example, the production in a retail company must be accounted precisely at all times (and stored in a database server) so that the finance department can calculate the expenses and net income of the day, current week, month, and year.

For production systems, accurate date and time are even more critical. Besides, inaccurate date and time render timestamp information in log files meaningless, diminishing their usefulness for system inspection and troubleshooting. Many applications rely on accurate timing information to operate properly. Keeping the date and time up-to-date in a Linux system is an important responsibility of every Linux user and system administrator. Question: In Linux, how can I change date and time from the command line?
