Technical Specifications & Standards
Official chronometric properties, ISO standards, and international database registry identifiers for Saint Pierre & Miquelon Standard Time:
Daylight Saving Time (DST) Transitions
⬆️ Spring Forward (Clocks Advance)
Clocks advance 1 hour to PMDT on the second Sunday in March at 02:00
⬇️ Fall Back (Clocks Return)
Clocks return 1 hour to PMST on the first Sunday in November at 02:00
Observing Jurisdictions & Subdivisions
1 Sovereign NationsSovereign nations, administrative subdivisions, and regional territories officially operating under PMST:
Regional Subdivisions & Territory Details
Financial Markets & Trading Hours
Coordinates North Atlantic fishing, customs, and ferry links between France's North American archipelago and Newfoundland.
Local Hours: 09:00 - 17:00 PMST
UTC Window: 12:00 - 20:00 UTC
Major Cities in PMST
Primary metropolitan centers and financial hubs observing this time zone:
Adoption History & Astronomical Facts
Year Established: 1911
Saint Pierre and Miquelon observed various local standards before harmonizing with North American daylight saving rules in 1987 while keeping UTC-3 as winter standard.
Saint Pierre and Miquelon is the only remaining French territorial possession in North America, located just 20 kilometers off the coast of Newfoundland.
Frequently Asked Questions about PMST
What is PMST?
PMST stands for Saint Pierre and Miquelon Standard Time, which is UTC-3.
Does Saint Pierre and Miquelon observe Daylight Saving Time?
Yes. Clocks advance to PMDT (UTC-2) from March to November, following North American transition dates.
What is the time difference between Saint Pierre and Paris?
Saint Pierre is 4 hours behind Paris in winter (CET) and 4 hours behind in summer (CEST) because both observe daylight saving.