Turks and Caicos Islands time zone history
On March 11, 2018 the summer offset, UTC−4, became permanent standard time; the clocks did not move that day. On standard time, clocks in Grand Turk run 15 minutes behind local mean solar time.
UTC−5
Standard time is UTC−5 (EDT/EST); clocks go forward to UTC−4 on the second Sunday in March and back on the first Sunday in November.
Summer time in 45 of 57 years since 1970
Before 1970
Standard time changes
| Date | Change | New standard time | Clock label |
|---|---|---|---|
| Before 1970 | |||
| January 1, 1890 | Local mean time (UTC−4:44:32) replaced | UTC−5:07:10 | KMT |
| February 1, 1912 | Standard time forward 7 minutes | UTC−5 | EST |
| Since 1970 | |||
| March 8, 2015 | Standard time forward 1 hour | UTC−4 | AST |
| March 11, 2018 | Summer offset kept as standard time; clocks did not move | UTC−5 | EST |
Daylight saving periods
| Years | Clocks go forward | Clocks go back | Shift and labels |
|---|---|---|---|
| 1979–1986 | last Sunday in April, 02:00 | last Sunday in October, 02:00 | 1 hour, EST to EDT |
| 1987–2006 | first Sunday in April, 02:00 | last Sunday in October, 02:00 | 1 hour, EST to EDT |
| 2007–2014 | second Sunday in March, 02:00 | first Sunday in November, 02:00 | 1 hour, EST to EDT |
| 2018 | not that year | November 4 | 1 hour |
| 2019–2037 | second Sunday in March, 02:00 | first Sunday in November, 02:00 | 1 hour, EST to EDT |
Clock changes in 2026, 2027 and 2028
The clocks go forward 1 hour (EST to EDT) on March 8, 2026, March 14, 2027 and March 12, 2028 at 02:00 and back 1 hour (EDT to EST) on November 1, 2026, November 7, 2027 and November 5, 2028 at 02:00, local time.
Also on UTC−5
Haiti, Jamaica, Cuba, Cancún (Mexico), Panama, Colombia, New York (United States), Monticello, Kentucky (United States), Louisville, Kentucky (United States) and Vevay, Indiana (United States) (nearest first; 13 more on the list of offsets).
Clocks next door since 1970
- Haiti (349 km): same time except 4,033 days in 1979–2011 and 2015–2018.
- Dominican Republic (358 km): same time except 8,656 days in 1970–2015 and 2018–2026; 1 hour ahead today.
- Puerto Rico (622 km): same time except 10,062 days in 1970–2015 and 2018–2026; 1 hour ahead today.
- Jamaica (709 km): same time except 10,932 days in 1974–1978 and 1984–2026.
- Cuba (1,170 km): same time except 2,973 days in 1970–2026.