Linux ntpdate sync error, one-hour problem __linux

Use date to view the time less than an hour, with ntpdate asia.pool.ntp.org sync, or wrong. Set the correct time manually date-s .... Yes, but a sync back to the original one hour. It is right to view the clock time. That should be the time zone problem, but modify/etcy/sysconfig/clock inside zone= "Asia/shanghai" also not. Finally checked, we have to find/usr/share/zoneinfo/asia/shanghai this file replaces/etc/localtime this file. Or find a file on the machine at the right time SCP root@**.***.**.**:/etc/localtime/etc/localtime so it's OK.

If the clock clock is wrong, you can write the time to the BIOS with CLOCK-W after synchronization

The domestic NTP server basically belongs to the scientific research education organization all, the general social organization releases the NTP server not to be many, below is some domestic available NTP server which I collected:

1.cn.pool.ntp.org

2.cn.pool.ntp.org

3.cn.pool.ntp.org

0.cn.pool.ntp.org

cn.pool.ntp.org

tw.pool.ntp.org

0.tw.pool.ntp.org

1.tw.pool.ntp.org

2.tw.pool.ntp.org

3.tw.pool.ntp.org

These 10 servers geographically from our recent, they provide us with the time and the standard time of the difference between the smallest, in the domestic use, precision is sufficient. If you have not yet given your Windows configuration or are still using Microsoft's own NTP server, I think you should change, and because the above server is polling operation (Mainland, Taiwan each polling), so choose one.
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The above content turns to: http://www.citydog.me/1352.html

On the public network, 1.cn.pool.ntp.org this probably delay more than 20 milliseconds, commonly used in Jiaotong University's NTP server on the public network to delay more than 80 milliseconds. The above test data is based on the network of Fuzhou Telecom.

The name of the NTP server has the following rules: number.country.pool.ntp.org
For example, the British NTP server is: 0.uk.pool.ntp.org