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In Cook Islands, there is only one time zone in use: Cook Island Time, CKT (UTC-10). Time in Cook Islands does not change because it does not observe Daylight Saving Time.
For comparing the current time in Cook Islands and United Kingdom or any other country combination, visit time comparison. For an introduction to UTC and world time, read UTC by country. Time changes in Cook Islands are shown below by city, state or region.
| Regions | Standard Time | Daylight Saving Time | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Time zone | 2016 | 2017 | 2018 | Time zone | 2016 | 2017 | 2018 | |||
| Cook Island Time CKT (UTC-10) | UTC-10 all year long | No Daylight Saving Time | |||||||
The information in this page comes from data published in the Time Zone Database managed by the Internet Assigned Numbers Authority (IANA).
| Year | Time zone Abbreviation | UTC Offset | Time zone Name | Daylight Saving Time | Begins (local time) |
|---|---|---|---|---|---|
| 1991 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 2 1991, 12:00 AM |
| 1990 | CKHST | UTC-09:30 | yes | Sunday, October 28 1990, 12:00 AM | |
| 1990 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 3 1990, 12:00 AM |
| 1989 | CKHST | UTC-09:30 | yes | Sunday, October 29 1989, 12:00 AM | |
| 1989 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 4 1989, 12:00 AM |
| 1988 | CKHST | UTC-09:30 | yes | Sunday, October 30 1988, 12:00 AM | |
| 1988 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 5 1988, 12:00 AM |
| 1987 | CKHST | UTC-09:30 | yes | Sunday, October 25 1987, 12:00 AM | |
| 1987 | CKT | UTC-10 | Cook Island Time | no | Saturday, February 28 1987, 12:00 AM |
| 1986 | CKHST | UTC-09:30 | yes | Sunday, October 26 1986, 12:00 AM | |
| 1986 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 1 1986, 12:00 AM |
| 1985 | CKHST | UTC-09:30 | yes | Sunday, October 27 1985, 12:00 AM | |
| 1985 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 2 1985, 12:00 AM |
| 1984 | CKHST | UTC-09:30 | yes | Sunday, October 28 1984, 12:00 AM | |
| 1984 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 3 1984, 12:00 AM |
| 1983 | CKHST | UTC-09:30 | yes | Sunday, October 30 1983, 12:00 AM | |
| 1983 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 5 1983, 12:00 AM |
| 1982 | CKHST | UTC-09:30 | yes | Sunday, October 31 1982, 12:00 AM | |
| 1982 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 6 1982, 12:00 AM |
| 1981 | CKHST | UTC-09:30 | yes | Sunday, October 25 1981, 12:00 AM | |
| 1981 | CKT | UTC-10 | Cook Island Time | no | Saturday, February 28 1981, 12:00 AM |
| 1980 | CKHST | UTC-09:30 | yes | Sunday, October 26 1980, 12:00 AM | |
| 1980 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 1 1980, 12:00 AM |
| 1979 | CKHST | UTC-09:30 | yes | Sunday, October 28 1979, 12:00 AM | |
| 1979 | CKT | UTC-10 | Cook Island Time | no | Saturday, March 3 1979, 12:00 AM |
| 1978 | CKHST | UTC-09:30 | yes | Sunday, November 12 1978, 12:00 AM | |
| 1901 | CKT | UTC-10:30 | Cook Island Time | no | Friday, December 13 1901, 10:15 AM |