Time Zone History

Casey Station time zone history

The Casey Station zone has changed its standard time 16 times since 1970, the most of all 312 zones. The largest single move came on March 9, 2023, when clocks went back 3 hours, from UTC+11 to UTC+8. The latest change of standard time came on March 9, 2023, from UTC+11 to UTC+8.

UTC+8

Standard time is UTC+8 all year under the current rules.

Covers: Casey · tz database name Antarctica/Casey

Convert a time from Casey Station

16 times a new standard time since 1970

UTC+8: today’s standard timeUTC+11: 3 hours ahead of today’s standard timeNo local time in the record (station not yet in use)UTC+8: today’s standard timeUTC+11: 3 hours ahead of today’sstandard timeNo local time in the record(station not yet in use)

How to read this chart

Before 1970

1960197019601970
JanFebMarAprMayJunJulAugSepOctNovDec1970198019902000201020202028JFMAMJJASOND1970198019902000201020202028

Standard time changes

DateChangeNew standard timeClock label
Before 1970
January 1, 1969First local time in the recordUTC+8numeric only
Since 1970
October 18, 2009Standard time forward 3 hoursUTC+11numeric only
March 5, 2010Standard time back 3 hoursUTC+8numeric only
October 28, 2011Standard time forward 3 hoursUTC+11numeric only
February 22, 2012Standard time back 3 hoursUTC+8numeric only
October 22, 2016Standard time forward 3 hoursUTC+11numeric only
March 11, 2018Standard time back 3 hoursUTC+8numeric only
October 7, 2018Standard time forward 3 hoursUTC+11numeric only
March 17, 2019Standard time back 3 hoursUTC+8numeric only
October 4, 2019Standard time forward 3 hoursUTC+11numeric only
March 8, 2020Standard time back 3 hoursUTC+8numeric only
October 4, 2020Standard time forward 3 hoursUTC+11numeric only
March 14, 2021Standard time back 3 hoursUTC+8numeric only
October 3, 2021Standard time forward 3 hoursUTC+11numeric only
March 13, 2022Standard time back 3 hoursUTC+8numeric only
October 2, 2022Standard time forward 3 hoursUTC+11numeric only
March 9, 2023Standard time back 3 hoursUTC+8numeric only

Also on UTC+8

Perth (Australia), Makassar (Indonesia), Singapore, Malaysia, Philippines, Macau, Hong Kong, Taiwan, Shanghai (China) and Ulaanbaatar (Mongolia) (nearest first; 1 more on the list of offsets).

Clocks next door since 1970

  • Vostok Station (1,352 km): usually 1 hour behind; different on 2,940 days in 1994, 2009–2012 and 2016–2026; 3 hours behind today.
  • Davis Station (1,395 km): usually 1 hour behind; different on 1,563 days in 2009–2012 and 2016–2023.
  • Mawson Station (2,028 km): usually 2 hours behind; different on 6,284 days in 2009–2026; 3 hours behind today.
  • Macquarie Island (Australia) (2,869 km): usually 2 hours ahead; different on 9,642 days in 1970–2026.
  • Hobart (Australia) (3,424 km): usually 2 hours ahead; different on 9,460 days in 1970–2026.

How it compares

On standard time, clocks in Casey Station run 38 minutes ahead of local mean solar time.