UTC 11:30

UTC+11:30
UTC+11:30
Time zone
	World map with the time zone highlighted
UTC offset
UTC	UTC+11:30
Current time
	15:19, 11 May 2024 UTC+11:30
Central meridian
	172.5 degrees E
Date-time group
	L*

UTC+11:30 is an identifier for a time offset from UTC of +11:30.

History

This time zone has been used as standard time in New Zealand and Norfolk Island, but is no longer used as a time zone anywhere.

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).^[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 UTC+12:00 in 1946 (after using this time zone 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 1946.^[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]

References

^ "Evening Post — 8 April 1929 — OUR TIME". paperspast.natlib.govt.nz. 2011. Retrieved 4 October 2015.
^ "Daylight Saving History". New Zealand Department of Internal Affairs. Retrieved 4 October 2015.
^ "Daylight Saving". New Zealand Department of Internal Affairs. Retrieved 4 October 2015.
^ 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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[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.

[1]

[2]

[3]

[4]

History

See also

References