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Pacific/Auckland time zone

3:01AMNZDT

NZDTUTC+13+18 h vs New York (you)

About Pacific/Auckland

Pacific/Auckland is the IANA time zone for New Zealand time in New Zealand and Antarctica. It currently keeps New Zealand Standard Time (NZST, UTC+12) in winter and New Zealand Daylight Time (NZDT, UTC+13) in summer.

The zone serves 2 countries or territories because their clocks have agreed since 1970; tzdata lists them together in zone1970.tab. That says nothing about borders or sovereignty, as the file’s header points out.

Its principal location is Auckland at 36.87° S, 174.77° E.

Abbreviations in use: NZST, NZDT. Offset page: UTC+12.

Rule for future years (POSIX TZ string)

NZST-12NZDT,M9.5.0,M4.1.0/3

The standard time is called NZST and is UTC+12. POSIX writes the offset with the opposite sign (west of Greenwich is positive), which is why the string says "-12". Daylight saving time is called NZDT and is UTC+13. It starts on the last Sunday of September at 02:00 and ends on the first Sunday of April at 03:00, local time. Software that has no full tzdata copy, such as many embedded devices, can use this string directly as the TZ environment variable.

Upcoming transitions

Computed from tzdata 2026f; local times are read on the clock just before each change.

History of Pacific/Auckland since 1970

The record starts with local mean time (UTC+11:39), which ended on November 1, 1868. The first daylight saving time in the record is in 1927.

YearsClocksAbbreviations
1970–1973UTC+12 all yearNZST
1974UTC+12 until November 3, then UTC+13NZST, NZDT
1975 onwardUTC+12 in winter, UTC+13 in summerNZDT, NZST

Before 1970

28 offset changes before 1970 in the record; the first 12 and the last 12:

tzdata commits to accuracy from 1970 for every zone (zone1970.tab); earlier entries are historical research and may be incomplete.

Aliases and zones with the same clock

These older or country-specific IDs are links to Pacific/Auckland in tzdata. Their pages redirect here: Antarctica/McMurdo, Antarctica/South_Pole, NZ.

Places on Pacific/Auckland

Convert Auckland time

Tip: Alt+↑/↓ steps the time by 15 minutes (Shift: one hour). The link keeps the date, time and direction.

Using Pacific/Auckland in code

Every major platform reads the same IANA ID. Store instants in UTC and convert with the ID at display time; never store a fixed offset for a place that has daylight saving time.

// JavaScript
new Date().toLocaleString('en-US', { timeZone: 'Pacific/Auckland' })

# Python 3.9+
from zoneinfo import ZoneInfo
from datetime import datetime
datetime.now(ZoneInfo('Pacific/Auckland'))

// Java
java.time.ZonedDateTime.now(java.time.ZoneId.of("Pacific/Auckland"))

// Go
loc, _ := time.LoadLocation("Pacific/Auckland")
time.Now().In(loc)

-- PostgreSQL
SELECT now() AT TIME ZONE 'Pacific/Auckland';

# Shell
TZ='Pacific/Auckland' date

Platforms ship their own copy of tzdata and update it on their own schedule. After a rule change, outputs can differ until the platform updates; this page uses tzdata 2026f.

Questions

What is the UTC offset of Pacific/Auckland?
UTC+12 in winter and UTC+13 in summer (daylight saving time from the last Sunday of September at 2:00 AM to the first Sunday of April at 3:00 AM).
Does Pacific/Auckland observe daylight saving time?
Yes: clocks move one hour forward on the last Sunday of September at 2:00 AM and back on the first Sunday of April at 3:00 AM.
Is Antarctica/McMurdo the same as Pacific/Auckland?
Yes. Antarctica/McMurdo, Antarctica/South_Pole and NZ are a link (alias) to Pacific/Auckland in tzdata and give the same time since 1970. They remain valid IDs.
Which countries use Pacific/Auckland?
New Zealand and Antarctica, according to zone1970.tab in tzdata.

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