Time Zone Converter | Convert IRST to NZST

IRST → NZST conversion table

What time it is in NZST for each hour in IRST today. +1 = next calendar day

IRST to NZST — 24-hour conversion
IRST	NZST
00:00	09:15
01:00	10:15
02:00	11:15
03:00	12:15
04:00	13:15
05:00	14:15
06:00	15:15
07:00	16:15
08:00	17:15
09:00	18:15
10:00	19:15
11:00	20:15
12:00	21:15
13:00	22:15
14:00	23:15
15:00	00:15 (2026-09-27)
16:00	01:15 (2026-09-27)
17:00	02:15 (2026-09-27)
18:00	04:15 (2026-09-27)
19:00	05:15 (2026-09-27)
20:00	06:15 (2026-09-27)
21:00	07:15 (2026-09-27)
22:00	08:15 (2026-09-27)
23:00	09:15 (2026-09-27)

Morning

12:00 AM IRST 9:15 AM NZST

1:00 AM IRST 10:15 AM NZST

2:00 AM IRST 11:15 AM NZST

3:00 AM IRST 12:15 PM NZST

4:00 AM IRST 1:15 PM NZST

5:00 AM IRST 2:15 PM NZST

6:00 AM IRST 3:15 PM NZST

7:00 AM IRST 4:15 PM NZST

8:00 AM IRST 5:15 PM NZST

9:00 AM IRST 6:15 PM NZST

10:00 AM IRST 7:15 PM NZST

11:00 AM IRST 8:15 PM NZST

Afternoon

12:00 PM IRST 9:15 PM NZST

1:00 PM IRST 10:15 PM NZST

2:00 PM IRST 11:15 PM NZST

3:00 PM IRST 12:15 AM NZST +1

4:00 PM IRST 1:15 AM NZST +1

5:00 PM IRST 2:15 AM NZST +1

Evening

6:00 PM IRST 4:15 AM NZST +1

7:00 PM IRST 5:15 AM NZST +1

8:00 PM IRST 6:15 AM NZST +1

9:00 PM IRST 7:15 AM NZST +1

10:00 PM IRST 8:15 AM NZST +1

11:00 PM IRST 9:15 AM NZST +1

Frequently asked questions

Use the hour-by-hour table below to see how each clock hour in Iran Standard Time (IRST) maps to Chatham Time (CHAST). Offsets can change with daylight saving.

Enter a time in the converter above, or look up the matching row in the 24-hour conversion table. Both times use today's date in their respective zones.

Yes. When either zone observes DST, the offset between them can shift by an hour. The table reflects the offset for today.

IRST to NZST Converter
Convert time between Iran Standard Time (IRST) and Chatham Time (CHAST).

Time Zone Comparison Chart

IRST → NZST conversion table

Frequently asked questions

Convert IRST to other time zones

Convert NZST to other time zones

IRST to NZST Converter Convert time between Iran Standard Time (IRST) and Chatham Time (CHAST).

Time Zone Comparison Chart

IRST → NZST conversion table

Frequently asked questions

What is the time difference between IRST and NZST?

How do I convert IRST to NZST?

Do daylight saving changes affect this conversion?

Convert IRST to other time zones

Convert NZST to other time zones

IRST to NZST Converter
Convert time between Iran Standard Time (IRST) and Chatham Time (CHAST).