Linux One of them ntp The package can automatically calibrate the time , And it's very easy to use .
Debian System installation NTP Timing pack ：
1 apt-get install ntpdate
CentOS System installation NTP Timing pack ：
1 yum install ntp
Timing command ：
1 ntpdate cn.pool.ntp.org
If you want to automatically adjust the time every certain time , Just add the above command to the Cron That's it ：
1 00 12 * * * /sbin/ntpdate cn.pool.ntp.org
* cn.pool.ntp.org yes ntp Chinese time service source of network time service organization
Quick proofreading linux Server time to Beijing time
The server adopts ntp Update time , Often involved UTC Whether to open or not , When it's turned on, the time will be fast 8 Hours
Some time ago, my friend gave me the following order , One command solves all previous problems .
rdate -t 60 -s stdtime.gov.hk
use rdate take stdtime.gov.hk Server time grab back , Then write to the hardware
Here is rdate How to use the command of
Function description ： Displays the date and time of other hosts .
language method ：rdate [-ps][ Host name or IP address ...]
Supplementary notes ： implement rdate instructions , Ask other hosts for the system time and display it .
ginseng number ：
-p Displays the date and time of the remote host .
-s Send the date and time received from the remote host , System time saved back to local host .