Convert NZDT to GMT
GMT is 13 hours behind NZDT. NZDT is UTC+13 and GMT is UTC+0.
Right now: NZDT · GMT
Best time to schedule a meeting
Standard 9–5 working hours do not overlap at all between NZDT and GMT. Someone has to take an early or late call — or use asynchronous communication instead.
| NZDT | GMT | Suitable? |
|---|---|---|
| 9:00 AM | 8:00 PM (previous day) | outside 9–5 |
| 10:00 AM | 9:00 PM (previous day) | outside 9–5 |
| 11:00 AM | 10:00 PM (previous day) | outside 9–5 |
| 12:00 PM | 11:00 PM (previous day) | outside 9–5 |
| 1:00 PM | 12:00 AM | outside 9–5 |
| 2:00 PM | 1:00 AM | outside 9–5 |
| 3:00 PM | 2:00 AM | outside 9–5 |
| 4:00 PM | 3:00 AM | outside 9–5 |
| 5:00 PM | 4:00 AM | outside 9–5 |
NZDT to GMT conversion table
| NZDT | GMT |
|---|---|
| 12:00 AM | 11:00 AM (previous day) |
| 1:00 AM | 12:00 PM (previous day) |
| 2:00 AM | 1:00 PM (previous day) |
| 3:00 AM | 2:00 PM (previous day) |
| 4:00 AM | 3:00 PM (previous day) |
| 5:00 AM | 4:00 PM (previous day) |
| 6:00 AM | 5:00 PM (previous day) |
| 7:00 AM | 6:00 PM (previous day) |
| 8:00 AM | 7:00 PM (previous day) |
| 9:00 AM | 8:00 PM (previous day) |
| 10:00 AM | 9:00 PM (previous day) |
| 11:00 AM | 10:00 PM (previous day) |
| 12:00 PM | 11:00 PM (previous day) |
| 1:00 PM | 12:00 AM |
| 2:00 PM | 1:00 AM |
| 3:00 PM | 2:00 AM |
| 4:00 PM | 3:00 AM |
| 5:00 PM | 4:00 AM |
| 6:00 PM | 5:00 AM |
| 7:00 PM | 6:00 AM |
| 8:00 PM | 7:00 AM |
| 9:00 PM | 8:00 AM |
| 10:00 PM | 9:00 AM |
| 11:00 PM | 10:00 AM |
About NZDT
New Zealand Daylight Time (NZDT) is UTC+13. It is used in New Zealand from late September to early April.
New Zealand Daylight Time is UTC+13, one of the few offsets past twelve hours and therefore a full calendar day ahead of most of the Americas. New Zealand's summer is the northern hemisphere's winter, so NZDT applies over Christmas — the opposite of every northern daylight-saving abbreviation, and a common mistake in end-of-year scheduling.
About GMT
Greenwich Mean Time (GMT) is UTC+0. It is used in the UK and Ireland in winter, Portugal, Iceland and much of West Africa.
The trap with GMT is that the United Kingdom is not on it for most of the year. From late March to late October the UK runs BST, UTC+1, so a meeting agreed "10am GMT" with a London colleague in July is an hour out unless both parties meant the abbreviation literally. Broadcasters and airlines avoid the ambiguity by saying UTC. GMT itself is fixed at UTC+0 and does not shift; it is the UK's clocks that move away from it and back.
Does this gap change with the seasons?
This gap is seasonal. The abbreviations themselves are fixed offsets, but the region on GMT switches to BST (UTC+1) from late March to late October. So the 13-hour figure on this page is correct for the part of the year when both places are actually on these abbreviations, and changes by an hour outside it.
NZDT does not shift, so the whole change comes from one side. A recurring meeting fixed in NZDT will appear to move by an hour for everyone on the other side, twice a year, without anyone changing anything.
This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.
Frequently asked questions
What time is 9:00 AM NZDT in GMT?
9:00 AM NZDT is 8:00 PM GMT (previous day).
Is GMT ahead of NZDT?
GMT is 13 hours behind NZDT.
Which time zone does this use?
NZDT is UTC+13 and GMT is UTC+0. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.