Technical Specifications & Standards
Official chronometric properties, ISO standards, and international database registry identifiers for Rothera 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 ROTT:
Regional Subdivisions & Territory Details
Financial Markets & Trading Hours
Coordinates BAS Twin Otter and Dash 7 polar research flights, marine biology laboratories, and Antarctic maritime surveys.
Local Hours: 08:00 - 17:00 ROTT
UTC Window: 11:00 - 20:00 UTC
Major Cities in ROTT
Primary metropolitan centers and financial hubs observing this time zone:
Adoption History & Astronomical Facts
Year Established: 1975
Rothera was established on Adelaide Island in 1975 to replace Adelaide base, standardizing on UTC-3 to align with Antarctic supply ships sailing from the Falkland Islands.
Rothera features a crushed-rock airstrip 900 meters long with hangar facilities, serving as the central aviation hub for British science in Antarctica.
Frequently Asked Questions about ROTT
What is Rothera Time?
Rothera Time (ROTT) is UTC-3, observed at the British Antarctic Survey's Rothera Station on Adelaide Island.
Why does Rothera observe UTC-3?
ROTT matches Falkland Islands Time (FKT, UTC-3), simplifying aviation and maritime supply dispatches between Stanley and Antarctica.
Does Rothera observe daylight saving?
No. Rothera Station stays on UTC-3 year-round.