Technical Specifications & Standards
Official chronometric properties, ISO standards, and international database registry identifiers for Marquesas Time:
Daylight Saving Time (DST) Transitions
⬆️ Spring Forward (Clocks Advance)
None
⬇️ Fall Back (Clocks Return)
None
Observing Jurisdictions & Subdivisions
1 Sovereign NationsSovereign nations, administrative subdivisions, and regional territories officially operating under MART:
Regional Subdivisions & Territory Details
Financial Markets & Trading Hours
Oversees copra harvest cooperatives, artisanal woodcarving exports, and remote marine transport.
Local Hours: 08:00 - 16:00 MART
UTC Window: 17:30 - 01:30 UTC
Major Cities in MART
Primary metropolitan centers and financial hubs observing this time zone:
Adoption History & Astronomical Facts
Year Established: 1912
The Marquesas archipelago established UTC-9:30 in 1912 to reflect its physical geographic placement 1,400 km northeast of Tahiti.
The Marquesas is one of the world's few half-hour time zones, sitting thirty minutes ahead of Tahiti and thirty minutes behind the Gambier Islands.
Frequently Asked Questions about MART
What is Marquesas Time?
Marquesas Time (MART) is UTC-9:30, observed in the Marquesas Islands of French Polynesia.
What is the time difference between Tahiti and the Marquesas?
The Marquesas Islands are 30 minutes ahead of Tahiti (UTC-10).
Does the Marquesas use daylight saving?
No. The islands maintain UTC-9:30 all year.