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DVR User’s Manual
 
 
 
 
20 
3.4.3 
Network Time Protocol Setup 
Time Zone 
Select <Time Zone> to enter the time zone. To find out the correct local time 
zone, please visit 
www.greenwichmeantime.com
 or refer to the following 
figure.  
 
 
 
NOTE: The <Time Zone> must be set to the correct local time zone or 
the <Network Time Protocol Setup> will not be accessible.   
 
Network Time Protocol Setup 
After entering the time zone, the <Network Time Protocol Setup> option will 
appear. Select the <Network Time Protocol Setup> to set the time server. 
The default time server is time.nist.gov, but the user can change it to other 
time servers when desired. A list of IP addresses of the time servers is listed 
below. 
 
129.6.15.28 129.6.15.29 132.163.4.101 
132.163.4.102 132.163.4.103 128.138.140.44 
192.43.244.18 131.107.1.10  69.25.96.13 
206.246.118.250 208.184.49.9  64.125.78.85 
207.200.81.113 64.236.96.53  68.216.79.113 
 
After the time server is set, select <Manually Time Sync> to sync the time. 
The time sync can also be updated periodically. Select <Automatically Time 
Sync
>, and the time will be automatically synced once an hour.