Time zone
NZDT
New Zealand Daylight Time
New Zealand Daylight Time (NZDT) is the summer time used across New Zealand and research stations in Antarctica's Ross region, shifting clocks forward an hour to UTC+13:00 when daylight saving is active. Though both member zones now sit at UTC+12:00 in standard time, the next DST period will return them to NZDT on September 27, 2026.
Sunday, May 31, 2026
Current offset
UTC+12:00
Standard · NZST
Daylight saving
Not observed
Year-round standard time
IANA zones
0
None observe daylight saving
DST offset
—
No summer variant
About NZDT
A fixed, year-round offset.
New Zealand Daylight Time (NZDT) is the summer time used across New Zealand and research stations in Antarctica's Ross region, shifting clocks forward an hour to UTC+13:00 when daylight saving is active. Though both member zones now sit at UTC+12:00 in standard time, the next DST period will return them to NZDT on September 27, 2026.
Same offset · UTC+12:00
Other zones at UTC+12:00 right now.
These named zones share NZDT's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about NZDT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- When does NZDT actually apply?
- NZDT is used from the last Sunday in September until the first Sunday in April each year, turning standard NZST into NZDT by moving clocks one hour ahead.
- Why does Antarctica appear in a New Zealand time zone?
- McMurdo Station runs on New Zealand Daylight Time because its supply and support links are based in New Zealand, making it practical to follow the same clock as its parent base.
- What is the difference between NZST and NZDT?
- NZST is the standard time at UTC+12:00, while NZDT is the daylight-saving version at UTC+13:00. The time zone has 24 letters identical except for that one-hour difference.
- How many time zones observe NZDT?
- There are only two zones that observe NZDT—Pacific/Auckland covering New Zealand and Antarctica/McMurdo for the Ross Sea region.
- Is it currently NZDT?
- No, both zones are currently on standard time (NZST). They will switch next to NZDT on September 27, 2026 in local time.
- Why do New Zealand and Antarctica share this time code?
- McMurdo Station coordinates its schedule with New Zealand for logistics and communication, so using the same time zone simplifies coordination across thousands of kilometers of ocean.
- What represents this region in the system?
- McMurdo Station in Antarctica is the representative zone for the NZDT region, and it currently shows NZST while not in DST.
Free · Developer API
Time, as JSON.
Every IANA time zone with live offsets, DST status, and the countries and cities that use them — clean, dependable JSON. Sign up free and get an API key in seconds.
countries, cities, convert, DST transitions coming next.
Get your free API key →