Synchronize system and hardware clocks.
hwclock/clock command to view and set hardware time to view the system hardware clock hwclock --show
The hardware clock is synchronized with the system clock:
# hwclock --hctosys or # clock --hctosys hc represents the hardware time, sys represents the system time, that is, the hardware clock is used to synchronize the system clock
System clock and hardware clock synchronization:
# hwclock --systohc or # clock --systohc synchronize hardware clock with system clock
Set the system time zone:
vim /etc/sysconfig/clock
Set as:
ZONE="Asia/Shanghai" UTC=true ARC=false
Then execute:
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
ntpdate us.pool.ntp.org