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Network Time Service

Internet time servers will undergo maintenance on 4 December 2024 (Wednesday).
Network time service may be affected during the maintenance period.

Please use Web Clock for the current time.[an error occurred while processing the directive]


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 time.hko.hk.

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 http://www.ntp.org.

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:
https://www.weather.gov.hk/en/wservice/tsheet/timeserv.htm

Please e-mail your comments or suggestions to seismo@hko.gov.hk