UTC+11:30

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Former time zone

title: "UTC+11:30" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["utc-offsets"] description: "Former time zone" topic_path: "general/utc-offsets" source: "https://en.wikipedia.org/wiki/UTC+11:30" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Former time zone ::

UTC+11:30 is an identifier for a time offset from UTC of +11:30. It is no longer in use as of 2015.

History

This time zone was used as standard time in New Zealand and Norfolk Island.

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 was 11 hours 30 minutes ahead of Greenwich Mean Time. This standard was known as New Zealand Mean Time (NZMT). New Zealand changed from NZMT to New Zealand Standard Time (NZST) as UTC+12:00 in 1946 (after using this time zone as a daylight saving time since 1928, including permanent daylight saving from 1941). It was officially changed to 12 hours in advance of UTC in 1946.

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

References

References

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

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utc-offsets