GMT to NZDT converter
NZDT is 13 hours ahead of GMT right now. Live clocks on both sides, a direct time input, the full 24-hour table with a permalink per hour, and the real daylight-saving state, computed from the IANA tz database on every request, never from a stored offset.
Convert an exact time type it, no sliders
Conversion runs in your browser against the same IANA rules the server uses, so it keeps working offline and nothing you type is sent anywhere.
Daylight saving right now
New Zealand Daylight Time
Pacific/Auckland is currently on NZDT (UTC+13:00), its daylight-saving clock.
next change: Sun, 4 Apr 2027 02:00 local → NZST (188 days, clocks go back)
NZDT is UTC+13, one of the furthest-forward clocks in regular use, running from late September to early April.
Greenwich Mean Time
Etc/GMT is on GMT (UTC+00:00).
no clock change scheduled: fixed at UTC+00:00
GMT is UTC+0 and never shifts. The UK observes GMT in winter only: in summer it is on BST (UTC+1), so "GMT" on a British invite dated in July usually means BST.
Best time to call green = 09:00 to 18:00 on both sides
No overlap inside a 09:00 to 18:00 day on both sides. Someone has to take an early or late slot, and the table below shows exactly which hours are least bad.
GMT to NZDT, hour by hour 27 September 2026 · every row is a permalink
| GMT | NZDT | 12-hour | Day | Permalink |
|---|---|---|---|---|
| 00:00 | 13:00 NZDT | 1:00 PM | same day | 00:00 → |
| 01:00 | 14:00 NZDT | 2:00 PM | same day | 01:00 → |
| 02:00 | 15:00 NZDT | 3:00 PM | same day | 02:00 → |
| 03:00 | 16:00 NZDT | 4:00 PM | same day | 03:00 → |
| 04:00 | 17:00 NZDT | 5:00 PM | same day | 04:00 → |
| 05:00 | 18:00 NZDT | 6:00 PM | same day | 05:00 → |
| 06:00 | 19:00 NZDT | 7:00 PM | same day | 06:00 → |
| 07:00 | 20:00 NZDT | 8:00 PM | same day | 07:00 → |
| 08:00 | 21:00 NZDT | 9:00 PM | same day | 08:00 → |
| 09:00 | 22:00 NZDT | 10:00 PM | same day | 09:00 → |
| 10:00 | 23:00 NZDT | 11:00 PM | same day | 10:00 → |
| 11:00 | 00:00 NZDT | 12:00 AM | next day | 11:00 → |
| 12:00 | 01:00 NZDT | 1:00 AM | next day | 12:00 → |
| 13:00 | 02:00 NZDT | 2:00 AM | next day | 13:00 → |
| 14:00 | 03:00 NZDT | 3:00 AM | next day | 14:00 → |
| 15:00 | 04:00 NZDT | 4:00 AM | next day | 15:00 → |
| 16:00 | 05:00 NZDT | 5:00 AM | next day | 16:00 → |
| 17:00 | 06:00 NZDT | 6:00 AM | next day | 17:00 → |
| 18:00 | 07:00 NZDT | 7:00 AM | next day | 18:00 → |
| 19:00 | 08:00 NZDT | 8:00 AM | next day | 19:00 → |
| 20:00 | 09:00 NZDT | 9:00 AM | next day | 20:00 → |
| 21:00 | 10:00 NZDT | 10:00 AM | next day | 21:00 → |
| 22:00 | 11:00 NZDT | 11:00 AM | next day | 22:00 → |
| 23:00 | 12:00 NZDT | 12:00 PM | next day | 23:00 → |