Linux Setup system date and time CentOS6.3

This article refers to the Web article, which is the document that you summarize after your practice:

[[email protected] ~]# date-s 07/19/2015 Set Date

Sunday, July 19, 2015 00:00:00 CST

[[email protected] ~]# date-s 21:02:30 Set time

Sunday, July 19, 2015 21:02:30 CST

[[Email protected] ~]# date 071921052015.20 set datetime (MMDDHHMMYYYY.SS)

Sunday, July 19, 2015 21:05:20 CST

[[email protected] ~]# date View system time

Sunday, July 19, 2015 21:40:18 CST

View the system hardware clock that is the BIOS time

[Email protected] ~]# hwclock--show or clock--show

July 19, 2015 Sunday 20:56 28 sec -0.299828 seconds

Set System hardware Time

[Email protected] ~]# hwclock--set--date= "07/19/1521:26:30"

[Email protected] ~]# hwclock--show

July 19, 2015 Sunday 21:26 36 SEC -0.766557 seconds

[Email protected] ~]# clock--set--date= "07/19/1521:26:30"

[[Email protected] ~] #clock--show

July 19, 2015 Sunday 21:26 34 SEC -0.563807 seconds

Synchronous system and hardware clock

[email protected] ~]# hwclock--SYSTOHC system clock and hardware clock synchronization

[Email protected] ~]# clock--SYSTOHC ibid.

[email protected] ~]# hwclock--hctosys hardware clock synchronization with system clock

[Email protected] ~]# clock--hctosys ibid.

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Linux Setup system date and time CentOS6.3