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Antarctica/McMurdo

Antarctica/McMurdo is the IANA time zone for New Zealand time – McMurdo, South Pole in Antarctica.

UTC+13:00

Tue, Sep 29 UTC+13 NZDT

Offsets and daylight saving time

Standard offset
UTC+12:00
Daylight offset
UTC+13:00
Rule
Daylight saving time from the last Sunday in September at 02:00 to the first Sunday in April at 03:00 (local time).

Next clock changes

  • Sunday, April 4, 2027 at 03:00: back to UTC+12 (NZDT → NZST)
  • Sunday, September 26, 2027 at 02:00: forward to UTC+13 (NZST → NZDT)

Names

Generic name
New Zealand Time
Abbreviation
NZST / NZDT
Standard / daylight
New Zealand Standard Time / New Zealand Daylight Time

In the tz database, Antarctica/McMurdo is a link (alias) to Pacific/Auckland: the two always show the same time.

Use it in code

// JavaScript
new Intl.DateTimeFormat('en-US', { timeZone: 'Antarctica/McMurdo' })

# Python
from zoneinfo import ZoneInfo
ZoneInfo('Antarctica/McMurdo')

-- PostgreSQL
SELECT now() AT TIME ZONE 'Antarctica/McMurdo';

Offset history since 1970

  • 1970–1973: UTC+12
  • 1974–2026: UTC+12 and UTC+13 each year

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