我的 ntp.conf 文件：
user@pc[0][07:37:40]:/etc$ cat /etc/ntp.conf
idriftfile /var/lib/ntp/ntp.drift
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server pool.ntp.org
命令输出：
user@pc[0][07:37:24]:/etc$ sudo ntpdate -dv pool.ntp.org
18 Jun 07:37:35 ntpdate[10737]: ntpdate 4.2.4p8@1.1612-o Tue Apr 19 07:15:05 UTC 2011 (1)
Looking for host pool.ntp.org and service ntp
host found : conquest.kjsl.com
transmit(198.137.202.16)
transmit(216.45.57.38)
transmit(64.6.144.6)
transmit(198.137.202.16)
transmit(216.45.57.38)
transmit(64.6.144.6)
transmit(198.137.202.16)
transmit(216.45.57.38)
transmit(64.6.144.6)
transmit(198.137.202.16)
transmit(216.45.57.38)
transmit(64.6.144.6)
transmit(198.137.202.16)
transmit(216.45.57.38)
transmit(64.6.144.6)
198.137.202.16: Server dropped: no data
216.45.57.38: Server dropped: no data
64.6.144.6: Server dropped: no data
server 198.137.202.16, port 123
stratum 0, precision 0, leap 00, trust 000
refid [198.137.202.16], delay 0.00000, dispersion 64.00000
transmitted 4, in filter 4
reference time: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
originate timestamp: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
transmit timestamp: d1a71a93.1f16c1e3 Sat, Jun 18 2011 7:37:39.121
filter delay: 0.00000 0.00000 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: 0.000000 0.000000 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000
server 216.45.57.38, port 123
stratum 0, precision 0, leap 00, trust 000
refid [216.45.57.38], delay 0.00000, dispersion 64.00000
transmitted 4, in filter 4
reference time: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
originate timestamp: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
transmit timestamp: d1a71a93.524a05dd Sat, Jun 18 2011 7:37:39.321
filter delay: 0.00000 0.00000 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: 0.000000 0.000000 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000
server 64.6.144.6, port 123
stratum 0, precision 0, leap 00, trust 000
refid [64.6.144.6], delay 0.00000, dispersion 64.00000
transmitted 4, in filter 4
reference time: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
transmitted 4, in filter 4
reference time: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
originate timestamp: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
transmit timestamp: d1a71a93.524a05dd Sat, Jun 18 2011 7:37:39.321
filter delay: 0.00000 0.00000 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: 0.000000 0.000000 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000
server 64.6.144.6, port 123
stratum 0, precision 0, leap 00, trust 000
refid [64.6.144.6], delay 0.00000, dispersion 64.00000
transmitted 4, in filter 4
reference time: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
originate timestamp: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
transmit timestamp: d1a71a93.857c6fbd Sat, Jun 18 2011 7:37:39.521
filter delay: 0.00000 0.00000 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: 0.000000 0.000000 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000
18 Jun 07:37:40 ntpdate[10737]: no server suitable for synchronization found
我的 ntp (/etc/ntp.conf) 说
server 0.ubuntu.pool.ntp.org
server 1.ubuntu.pool.ntp.org
server 2.ubuntu.pool.ntp.org
server 3.ubuntu.pool.ntp.org
将您的更改为此并以 root ( sudo -i)身份执行
service ntp stop
做改变：
service ntp start
测试一下
date
更新： 昨晚我必须配置一台机器，发现这可能会有所帮助
~# dpkg-reconfigure tzdata
您可以设置时区和退出（如根：sudo -i）
:~# dpkg-reconfigure tzdata
Current default time zone: 'America/Montevideo'
Local time is now: Tue Mar 6 13:18:00 UYST 2012.
Universal Time is now: Tue Mar 6 15:18:00 UTC 2012.
:~#