Time Scales | South China Morning Post
  • Thu
  • Jan 29, 2015
  • Updated: 2:23am

Time Scales

HK gets set to add a leap second

The flag to mark the 15th anniversary of Hong Kong's handover to the mainland will be raised a bit late - by one second.

Sunday, 13 May, 2012, 12:00am

Clock's ticking on GMT's supremacy

Before the Industrial Revolution, time was kept by local authorities, each town using its own official clock, if it had one.

But with the new-fangled steam engine and railroad enabling people to travel long distances relatively quickly, it became necessary for time to catch up. Hence, the invention of standard time.

30 Dec 2011 - 12:00am

A leap second to make 2009 longer

The first day of 2009 will last a little longer because of the addition of a leap second at 7.59.59am on January 1 to keep astronomical time, which is based on the rotation of the Earth, in synchronisation with atomic time. The process will finish in two seconds at 8am. Leap seconds have been introduced 24 times since the adoption of co-ordinated universal time in 1972.

20 Dec 2008 - 12:00am

Just a second - it's about time

Hong Kong residents will finally have some time on their hands - but only for a second.

The Observatory is to adjust its clocks to meet international time standards on New Year's Day.

'All countries using Co-ordinated Universal Time [UTC] will gain a second on New Year's Day,' John Leung Yin-kong, scientific officer with the Observatory, said.

17 Dec 1998 - 12:00am