Saint Pierre and Miquelon time zone history
On standard time, clocks in Miquelon run 45 minutes ahead of local mean solar time. Local mean time, UTC−3:44:40, ended in 1911.
UTC−3
Standard time is UTC−3; clocks go forward to UTC−2 on the second Sunday in March and back on the first Sunday in November.
Summer time in 40 of 57 years since 1970
Before 1970
Standard time changes
| Date | Change | New standard time | Clock label |
|---|---|---|---|
| Before 1970 | |||
| June 15, 1911 | Local mean time (UTC−3:44:40) replaced | UTC−4 | AST |
| Since 1970 | |||
| May 1, 1980 | Standard time forward 1 hour | UTC−3 | numeric only |
Daylight saving periods
| Years | Clocks go forward | Clocks go back | Shift and labels |
|---|---|---|---|
| 1987–2006 | first Sunday in April, 02:00 | last Sunday in October, 02:00 | 1 hour |
| 2007–2037 | second Sunday in March, 02:00 | first Sunday in November, 02:00 | 1 hour |
Clock changes in 2026, 2027 and 2028
The clocks go forward 1 hour on March 8, 2026, March 14, 2027 and March 12, 2028 at 02:00 and back 1 hour on November 1, 2026, November 7, 2027 and November 5, 2028 at 02:00, local time.
Also on UTC−3
Suriname, French Guiana, Belém (Brazil), Santarém (Brazil), Fortaleza (Brazil), Araguaína (Brazil), Recife (Brazil), Maceió (Brazil), Bahia (Brazil) and São Paulo (Brazil) (nearest first; 19 more on the list of offsets).
Clocks next door since 1970
- St. John’s (Canada) (279 km): usually 30 minutes behind; different on 5,271 days in 1970–2026.
- Glace Bay (Canada) (292 km): usually 1 hour behind; different on 5,060 days in 1970–2026.
- Halifax (Canada) (623 km): usually 1 hour behind; different on 5,060 days in 1970–2026.
- Moncton (Canada) (654 km): usually 1 hour behind; different on 5,060 days in 1970–2026.
- Goose Bay (Canada) (756 km): usually 1 hour behind; different on 5,270 days in 1970–2026.