The Hong Kong Observatory
Network Time Service
Synchronization of PC clocks for Windows users
The Hong Kong Observatory operates a Network Time Server to enable
synchronization of computers with the Hong Kong Observatory standard time. The public can now access the time service through the Internet Time Server of the Observatory at stdtime.gov.hk.
The server supports NTP, SNTP, Time and Daytime internet protocols. Besides, IPv6 users may also access NTP service through
To make use of the time service, a synchronization software has to be installed on your computer.
A list of popular synchronization software can be found at
Among these software, the following packages have been tested and confirmed
to work with the Observatory time server:
Please refer to the installation instructions accompanying the software.
To synchronize your computer with the Hong Kong standard time, simply designate the Observatory
Internet Time Server - stdtime.gov.hk as the network time server in your software.
You may like to visit the Hong Kong Observatory Time Service page for more information: