IRDT Time to AST Time Converter

Warning! IRDT has automatically switched to IRST
AST has automatically switched to ADT

IRDT stands for Iran Daylight Time (NOT in use)

IRST stands for Iran Standard Time (in use)

AST stands for Arabia Standard Time (NOT in use)

ADT stands for Arabia Daylight Time (in use)

IRST = UTC + 03:30

22:00:50

Thursday, December 11, 2025

ADT = UTC + 03:00

21:30:50

Thursday, December 11, 2025

IRST(Iran Standard Time) and ADT(Arabia Daylight Time) Mapping Table
Iran Standard Time(IRST)	Arabia Daylight Time(ADT)
00:00	23:30-1 day
01:00	00:30
02:00	01:30
03:00	02:30
04:00	03:30
05:00	04:30
06:00	05:30
07:00	06:30
08:00	07:30
09:00	08:30
10:00	09:30
11:00	10:30
12:00	11:30
13:00	12:30
14:00	13:30
15:00	14:30
16:00	15:30
17:00	16:30
18:00	17:30
19:00	18:30
20:00	19:30
21:00	20:30
22:00	21:30
23:00	22:30

IRST(Iran Standard Time)

Iran Standard Time(IRST) is 03:30 hours ahead of Coordinated Universal(UTC) Time.This timezone is used during standard time in: AsiaIran Standard Time is a half-hour time zone. Its local time differs by 30 minutes instead of the normal whole hour.

Typical City of IRST (Iran Standard Time)

Iran - Tehran (Winter)

ADT(Arabia Daylight Time)

Arabia Daylight Time(ADT) is 03:00 hours ahead of Coordinated Universal(UTC) Time.This timezone is a Daylight Saving Time timezone and is used in: Asia

Typical City of ADT (Arabia Daylight Time)

Jordan - Amman (Summer)