Haiti time zone history
On standard time, clocks in Port-au-Prince run 11 minutes behind local mean solar time. Local mean time, UTC−4:49:20, ended in 1890.
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 31 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−4:49:20) replaced | UTC−4:49 | PPMT |
| January 24, 1917 | Standard time back 11 minutes | UTC−5 | EST |
Daylight saving periods
| Years | Clocks go forward | Clocks go back | Shift and labels |
|---|---|---|---|
| 1983 | May 8 | October 30 | 1 hour, EST to EDT |
| 1984–1987 | last Sunday in April, 00:00 | last Sunday in October, 00:00 | 1 hour, EST to EDT |
| 1988–1997 | first Sunday in April, 01:00 | last Sunday in October, 02:00 | 1 hour, EST to EDT |
| 2005–2006 | first Sunday in April, 00:00 | last Sunday in October, 00:00 | 1 hour, EST to EDT |
| 2012–2015 | second Sunday in March, 02:00 | first Sunday in November, 02:00 | 1 hour, EST to EDT |
| 2017–2037 | 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
Turks and Caicos Islands, Jamaica, Cuba, Panama, Cancún (Mexico), Colombia, Monticello, Kentucky (United States), Guayaquil (Ecuador), New York (United States) and Louisville, Kentucky (United States) (nearest first; 13 more on the list of offsets).
Clocks next door since 1970
- Dominican Republic (257 km): usually 1 hour ahead; different on 8,521 days in 37 different years between 1970 and 2026.
- Turks and Caicos Islands (349 km): same time except 4,033 days in 1979–2011 and 2015–2018.
- Jamaica (475 km): same time except 8,399 days in 1974–1997, 2005, 2006, 2012–2015 and 2017–2026.
- Puerto Rico (657 km): usually 1 hour ahead; different on 6,726 days in 1983–1997, 2005, 2006, 2012–2015 and 2017–2026.
- Venezuela (1,065 km): usually 1 hour ahead; different on 8,840 days in 1983–1997 and 2005–2026.
How it compares
Standard time has stayed at UTC−5 since 1917.