Linux

Modify Linux System Date and Time

Check System Date

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% date
Wed Apr 20 06:11:59 CST 2022

Set System Date

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% sudo date -s 10:10:10
Wed Apr 20 10:10:10 CST 2022

Set System Date and Time

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% sudo date -s "2018/8/8 10:00:00"
Wed Aug 8 10:10:10 CST 2018

Check BIOS Time

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% sudo hwclock
Wed 20 Apr 2022 06:49:34 AM CST  -0.110403 seconds
% sudo clock
Wed 20 Apr 2022 06:49:52 AM CST  -0.641359 seconds

Write BIOS Time into System Time

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% sudo hwclock -s

Write System Time into BIOS Time

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% sudo hwclock -w

Sync Time Need to Install ntpdate
Update system time to Asia clock

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% sudo yum install ntpdate
% sudo ntpdate asia.pool.ntp.org