Convert Australian Western Standard Time to Iran Standard Time
Instantly convert Australian Western Standard Time (AWST) to Iran Standard Time (IRST) with our free online calculator.
Australian Western Standard Time
01:20:51 PM
Wed, Jun 24 (AWST)
Iran Standard Time
08:50:51 AM
Wed, Jun 24 (IRST)
Convert a Specific Time
24-Hour Comparison
| AWST | IRST |
|---|---|
| 12:00 AM | 7.5:00 PM(-1d) |
| 1:00 AM | 8.5:00 PM(-1d) |
| 2:00 AM | 9.5:00 PM(-1d) |
| 3:00 AM | 10.5:00 PM(-1d) |
| 4:00 AM | 11.5:00 PM(-1d) |
| 5:00 AM | 0.5:00 AM |
| 6:00 AM | 1.5:00 AM |
| 7:00 AM | 2.5:00 AM |
| 8:00 AM | 3.5:00 AM |
| 9:00 AM | 4.5:00 AM |
| 10:00 AM | 5.5:00 AM |
| 11:00 AM | 6.5:00 AM |
| 12:00 PM | 7.5:00 AM |
| 1:00 PM | 8.5:00 AM |
| 2:00 PM | 9.5:00 AM |
| 3:00 PM | 10.5:00 AM |
| 4:00 PM | 11.5:00 AM |
| 5:00 PM | 0.5:00 PM |
| 6:00 PM | 1.5:00 PM |
| 7:00 PM | 2.5:00 PM |
| 8:00 PM | 3.5:00 PM |
| 9:00 PM | 4.5:00 PM |
| 10:00 PM | 5.5:00 PM |
| 11:00 PM | 6.5:00 PM |
How to Convert Australian Western Standard Time to Iran Standard Time
Formula
To convert Australian Western Standard Time (AWST) to Iran Standard Time (IRST): Convert AWST to IRST
About Australian Western Standard Time (AWST)
Australian Western Standard Time (AWST, IANA: Australia/Perth) is the civil time of Western Australia (WA), set at UTC+8:00 year-round (no DST). Western Australia has rejected Daylight Saving Time in four separate referendums (1975, 1984, 1992, 2009 — each time defeated), so AWST is observed without seasonal change despite the rest of Australia (eastern states) observing AEDT in summer. The unusual situation creates a 3-hour offset between Perth (AWST = UTC+8) and Sydney (AEDT = UTC+11) in summer, vs. the standard 2-hour offset in winter (AWST UTC+8 vs AEST UTC+10). AWST is identical in offset to China Standard Time (CST), Singapore Time (SGT), Hong Kong Time (HKT), Philippine Time (PHT), Malaysia Time (MYT). AWST serves approximately 2.8 million Western Australian residents — the world's largest sub-national area on a single time zone (WA is 2.527 million km² = larger than Western Europe). Major AWST cities: Perth (2.1M metro — Australia's 4th-largest city), Mandurah (95K), Bunbury (75K), Geraldton (40K), Kalgoorlie-Boulder (30K — gold mining hub), Albany (35K — historic whaling port), Broome (15K — pearl industry + tourism), Karratha (15K — Pilbara iron-ore export hub). Affects: ASX (Australian Securities Exchange) operations from Perth offices, Rio Tinto / BHP Pilbara iron-ore shipping coordination.
About Iran Standard Time (IRST)
Iran Standard Time (IRST, IANA: Asia/Tehran) is the civil time of the Islamic Republic of Iran, set at UTC+3:30 — one of the world's few 30-minute-offset time zones. IRST observes Daylight Saving Time (switching to IRDT = UTC+4:30) from the last Wednesday of the Iranian month of Farvardin (~March 22) to the last Wednesday of Shahrivar (~September 22) per Iranian government calendar (the country abolished DST in 2022 then partially reinstated it for energy savings — the schedule is subject to change by Iranian Parliament Majlis decree). The 30-minute offset is preserved because Iran's central meridian is approximately 52.5°E, between UTC+3 and UTC+4 standard zones, and the Iranian Solar Hijri calendar has its own astronomical traditions for time-keeping. IRST serves approximately 88 million Iranian people across 31 provinces. Major cities: Tehran (8.7M city, 13M metro — capital), Mashhad (3.1M), Isfahan (2.2M), Karaj (1.6M), Shiraz (1.6M), Tabriz (1.6M), Qom (1.2M). Other 30/45-minute offset zones: India (UTC+5:30), Nepal (UTC+5:45), Myanmar (UTC+6:30), Newfoundland (UTC-3:30), Afghanistan (UTC+4:30), Marquesas (UTC-9:30). Affects: Tehran Stock Exchange (TSE) trading, Iranian Solar Hijri New Year Nowruz celebrations.