How to modify date and time in linux

How to modify the date and time in Linux: Execute the [date -s "Year-Month-Day Hour:Minute:Second"] command to successfully modify the date and time. If you want to check the time and date, just execute the [date] command directly.

The operating environment of this article: red hat enterprise linux 6.1 system, thinkpad t480 computer.

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How to modify and check the date and time:

1. Check the time, Date

# date
Fri Jan 11 14:04:10 CST 2019

2. Modification time

Syntax: date -s "hour:minute:second"

# date -s "17:20:30"

3.Modification date and time

Syntax :date -s "Year-Month-Day Hour:Minute:Second"

# date -s "2019-01-11 14:21:30"

Note: The setting time needs to be enclosed in double quotes, otherwise an error will be reported.

4. hwclock -w Write the time into the BIOS to avoid losing the set time after restarting the server.

# hwclock -w

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