UTC+11:30

UTC+11:30
All time zones defined by difference with UTC
Min Behind (−) 0 Ahead (+)
:00 12 11 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
:30 9 3 2 3 4 5 6 8 9 10
:45 5 12 13
Areas in a darker shade use daylight saving time. The base color shows the standard time.
  UTC+11:30 172.5 degrees E
Current time
15:06, 2 September 2018 UTC+11:30 [refresh]
Meridians
Central 172.5 degrees E
Other
Date-time group (DTG) L*
External links

UTC+11:30 is an identifier for a +11:30 hour time offset from UTC. This timezone has been used as standard time in Norfolk Island and New Zealand, but is no longer used as a time zone anywhere.

Historical use

On November 2, 1868, New Zealand officially adopted a standard time to be observed nationally, and was perhaps the first country to do so. It was based on the longitude 172° 30' East of Greenwich, that is 11 hours 30 minutes ahead of Greenwich Mean Time. This standard was known as New Zealand Mean Time (NZMT).[1] Today this would be around the same zone covered by UTC+11:30. New Zealand changed from NZMT to New Zealand Standard Time (NZST) as GMT+1200 in 1946 (after using this timezone as a daylight saving time since 1928, including permanent daylight saving from 1941).[2] It was officially changed to 12 hours in advance of UTC in 1974.[3]

Norfolk Island's standard time (NFT) was on UTC+11:30 until 4 October 2015, when it was changed to UTC+11:00.[4]

See also

References

  1. "Evening Post — 8 April 1929 — OUR TIME". paperspast.natlib.govt.nz. 2011. Retrieved 4 October 2015.
  2. "Daylight Saving History". New Zealand Department of Internal Affairs. Retrieved 4 October 2015.
  3. "Daylight Saving". New Zealand Department of Internal Affairs. Retrieved 4 October 2015.
  4. Hardgrave, Gary (3 September 2015). "Norfolk Island standard time changes 4 October 2015" (Press release). Administrator of Norfolk Island. Retrieved 4 October 2015.
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