What is the method for calibrating the time on a Linux server?

On a Linux server, you can calibrate the server time using the following methods:

1. Utilizing NTP for automatic calibration: NTP is a protocol used to synchronize the time between devices on a network, allowing for automatic time calibration by connecting servers to an NTP server. This can be achieved by installing and configuring NTP client software (such as ntpdate or chrony).
2. Manually adjust the time: If you are unable to connect to the NTP server or need to manually adjust the time, you can use the following command to set the server time:
3. Set the date and time using the date command: date -s “YYYY-MM-DD HH:MM:SS”, where YYYY represents the 4-digit year, MM represents the 2-digit month, DD represents the 2-digit date, HH represents the hour, MM represents the minutes, and SS represents the seconds.
4. Set the hardware clock using the hwclock command with the “–set –date=”YYYY-MM-DD HH:MM:SS”” option, then synchronize the hardware clock to the system clock using hwclock –hctosys.

Please note that for production servers, it is recommended to use automatic calibration methods (NTP) to ensure the accuracy and consistency of time.