War, the equatorial mount and transit circle were lost. After the war, a pendulum clock was installed and regulated by radio time signals from other timekeeping centres. Timing accuracy gradually improved from the daily engineering tolerance of a few seconds to one-fifth of a second. In 1966, the pendulum clock in the Royal Observatory Hong Kong was replaced by a crystal oscillator timing system. In the same year, the Royal Observatory started to broadcast the time directly with a 6-pip time signal on 95 MHz. This continued until 16 September 1989. In 1980, the Royal Observatory adopted a timing system based on a Caesium beam atomic clock. This system narrowed the engineering tolerance down to less than 1 millisecond. The frequency standard of the clock is based on the primary standard used by Japan's Communications Research Laboratory. In 1994, the atomic clock was replaced with a newer model. Current Hong Kong Time can be obtained from the Observatory's Network Time Server . Daylight Saving Hong Kong adopted daylight saving measures in 1941. However, the practice eventually declined in popularity and was eliminated after 1979. Time zone serial Asia/Hong_Kong See also UTC+08:00 ASEAN Common Time tz database References External links Hong Kong Observatory Hong Kong Time by Hong Kong Observatory Hong Kong Summer Time in history History of Hong Kong Time service IANA time zone database PHP time zones Asia Geography of Hong Kong Time zones Time in China