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Convert Australian Western Standard Time to Indochina Time

Instantly convert Australian Western Standard Time (AWST) to Indochina Time (ICT) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Australian Western Standard Time

01:20:51 PM

Wed, Jun 24 (AWST)

Indochina Time

12:20:51 PM

Wed, Jun 24 (ICT)

ICT is -1 hours from AWST

Convert a Specific Time

AWST

24-Hour Comparison

AWSTICT
12:00 AM11:00 PM(-1d)
1:00 AM12:00 AM
2:00 AM1:00 AM
3:00 AM2:00 AM
4:00 AM3:00 AM
5:00 AM4:00 AM
6:00 AM5:00 AM
7:00 AM6:00 AM
8:00 AM7:00 AM
9:00 AM8:00 AM
10:00 AM9:00 AM
11:00 AM10:00 AM
12:00 PM11:00 AM
1:00 PM12:00 PM
2:00 PM1:00 PM
3:00 PM2:00 PM
4:00 PM3:00 PM
5:00 PM4:00 PM
6:00 PM5:00 PM
7:00 PM6:00 PM
8:00 PM7:00 PM
9:00 PM8:00 PM
10:00 PM9:00 PM
11:00 PM10:00 PM

How to Convert Australian Western Standard Time to Indochina Time

Formula

To convert Australian Western Standard Time (AWST) to Indochina Time (ICT): Convert AWST to ICT

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 Indochina Time (ICT)

Indochina Time (ICT, IANA: Asia/Bangkok, Asia/Ho_Chi_Minh) is the civil time of mainland Southeast Asia (excluding Myanmar + Indonesia), set at UTC+7:00 year-round (no DST). ICT serves approximately 250 million people across: Thailand, Vietnam, Cambodia, Laos, Christmas Island (Australian territory in Indian Ocean), Java + Sumatra + western Indonesia (which uses Western Indonesian Time WIB = identical UTC+7 offset). ICT shares its offset with Krasnoyarsk Time (Russia, UTC+7) and Davis Antarctica research station. Major ICT cities: Bangkok Thailand (10.7M metro — Southeast Asia's largest tourist destination + ASEAN economic hub), Ho Chi Minh City Vietnam (10M city, 14M metro — formerly Saigon, Vietnam's largest city), Hanoi Vietnam (8M metro — capital), Jakarta Indonesia (10.5M city, 35M metro — uses WIB which is identical to ICT but a different zone-name), Phnom Penh Cambodia (2M), Vientiane Laos (820K). Affects: SET (Stock Exchange of Thailand) trading hours, HOSE + HNX (Vietnam stock exchanges) trading, Phnom Penh Securities Exchange (CSX) hours, Bangkok BTS Skytrain + MRT subway operating hours, and ASEAN diplomatic-meeting schedules.

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