Rothera

Antarctica • Rothera

Antarctica

Current local time

01:16:16

Sunday, May 31, 2026

UTC offset

UTC-03:00

No daylight saving changes

Rothera does not observe daylight saving time. Clocks stay on UTC-03:00 all year long.

Timezone details

Identifier
Abbreviation
—
Transitioned
May 30, 2021 at 10:00 PM

Location

Latitude
-67.56666
Longitude
-68.13333
Country
Antarctica

Rothera Time (ROTHER)

FAQs

Rothera Time is used in the remote Antarctic research station of Rothera, the British Antarctic Survey's main logistics hub. It operates on a fixed UTC−03:00 offset year-round, with no daylight saving adjustments, making it consistent and predictable for researchers working in one of Earth's harshest environments.

  • Why doesn't Rothera observe daylight saving time?

    At such extreme southern latitudes, seasonal daylight variation is already dramatic—from near-constant sun in summer to near-constant darkness in winter. DST would provide no practical benefit to station operations.

  • When was the current UTC−03 offset established?

    Rothera adopted the current UTC−03:00 offset in 2021, replacing the previous UTC−04:00 schedule to better align with supply flights from South America.

  • Which country uses Rothera Time?

    Antarctica's Rothera Research Station uses this timezone, operated by the British Antarctic Survey. No other civilian population uses it.

  • Is there DST in Antarctica?

    Most Antarctic stations do not observe DST since the continent has no permanent civilian population. Research stations follow the timezone of their parent country or choose their own offsets for practical scheduling.