NZST to GMT Converter

Standard business hours (9 AM–5 PM, Mon–Fri) in New Zealand Time and Greenwich Mean Time don't overlap on the same weekday. Greenwich Mean Time is 11 hours behind New Zealand Time.

With some flexibility, there’s a workable window outside standard hours:

• 6 PM–8 PM in New Zealand Time (7 AM–9 AM in Greenwich Mean Time) — suggest 7:00 PM New Zealand Time (8:00 AM Greenwich Mean Time).

This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.

New Zealand Time is also known as NZST, or NZDT. To call New Zealand, dial +64.

Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.

Greenwich Mean Time is approximately 11,400 miles north of New Zealand Time.

Both zones observe daylight saving time, but they transition on different dates.

New Zealand Time: next transition on Sunday, September 27, 2026.

Greenwich Mean Time: next transition on Sunday, October 25, 2026.

New Zealand Time and Greenwich Mean Time are in opposite hemispheres, so their clocks change in opposite directions about six months apart — one springs forward while the other falls back. The offset between them therefore shifts twice a year and can swing by up to two hours across the seasons, more than a typical same-hemisphere pair. Recurring meetings will need re-checking after each transition.

See the daylight saving time page for transition dates across every time zone.