IRST to NZST converter

Iran Time (Tehran) to New Zealand Time (Auckland, Wellington).

IRST3:37 AMSat 31 Oct 2026

→

NZST1:07 PMSat 31 Oct 2026

NZST is 9 h 30 min ahead of IRST.

Pick a time in IRST

⇄ NZST to IRST

9:00 AM IRST = 6:30 PM NZST same day

Best time to meet

No hour falls inside 9 AM to 5 PM in both places. The least painful: around 7:00 AM IRST, which is 4:30 PM NZST.

IRST to NZST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

IRST	NZST
12:00 AM IRST	9:30 AM NZST
1:00 AM IRST	10:30 AM NZST
2:00 AM IRST	11:30 AM NZST
3:00 AM IRST	12:30 PM NZST
4:00 AM IRST	1:30 PM NZST
5:00 AM IRST	2:30 PM NZST
6:00 AM IRST	3:30 PM NZST
7:00 AM IRST	4:30 PM NZST
8:00 AM IRST	5:30 PM NZST
9:00 AM IRST	6:30 PM NZST
10:00 AM IRST	7:30 PM NZST
11:00 AM IRST	8:30 PM NZST
12:00 PM IRST	9:30 PM NZST
1:00 PM IRST	10:30 PM NZST
2:00 PM IRST	11:30 PM NZST
3:00 PM IRST	12:30 AM NZST next day
4:00 PM IRST	1:30 AM NZST next day
5:00 PM IRST	2:30 AM NZST next day
6:00 PM IRST	3:30 AM NZST next day
7:00 PM IRST	4:30 AM NZST next day
8:00 PM IRST	5:30 AM NZST next day
9:00 PM IRST	6:30 AM NZST next day
10:00 PM IRST	7:30 AM NZST next day
11:00 PM IRST	8:30 AM NZST next day

Quick answers

9:00 AM IRST = 6:30 PM NZST
12:00 PM IRST = 9:30 PM NZST
3:00 PM IRST = 12:30 AM NZST (next day)
5:00 PM IRST = 2:30 AM NZST (next day)
9:00 AM NZST = 11:30 PM IRST (previous day)
12:00 PM NZST = 2:30 AM IRST
5:00 PM NZST = 7:30 AM IRST

Does the gap change during the year?

Yes, because of daylight saving. Until 3 Apr 2027: NZST is 9 h 30 min ahead of IRST. From 3 Apr 2027 to 25 Sep 2027: NZST is 8 h 30 min ahead of IRST. From 25 Sep 2027 to 1 Apr 2028: NZST is 9 h 30 min ahead of IRST.

IRST does not change its clocks. NZST next changes its clocks on 4 Apr 2027 (back 1 h, to UTC+12), then on 26 Sep 2027 (forward 1 h, to UTC+13).

About IRST and NZST

IRST here means Iran Time, the clock in Tehran. Right now it is UTC+3:30. It has no daylight saving.

NZST here means New Zealand Time, the clock in Auckland, Wellington. Right now it is UTC+13. Strictly, NZST is the winter name; in summer these places use NZDT. This page follows their real clock all year.

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