Convert Australian Western Standard Time to Atlantic Standard Time
Instantly convert Australian Western Standard Time (AWST) to Atlantic Standard Time (AST) with our free online calculator.
Australian Western Standard Time
01:20:50 PM
Wed, Jun 24 (AWST)
Atlantic Standard Time
01:20:50 AM
Wed, Jun 24 (AST)
Convert a Specific Time
24-Hour Comparison
| AWST | AST |
|---|---|
| 12:00 AM | 12:00 PM(-1d) |
| 1:00 AM | 1:00 PM(-1d) |
| 2:00 AM | 2:00 PM(-1d) |
| 3:00 AM | 3:00 PM(-1d) |
| 4:00 AM | 4:00 PM(-1d) |
| 5:00 AM | 5:00 PM(-1d) |
| 6:00 AM | 6:00 PM(-1d) |
| 7:00 AM | 7:00 PM(-1d) |
| 8:00 AM | 8:00 PM(-1d) |
| 9:00 AM | 9:00 PM(-1d) |
| 10:00 AM | 10:00 PM(-1d) |
| 11:00 AM | 11:00 PM(-1d) |
| 12:00 PM | 12:00 AM |
| 1:00 PM | 1:00 AM |
| 2:00 PM | 2:00 AM |
| 3:00 PM | 3:00 AM |
| 4:00 PM | 4:00 AM |
| 5:00 PM | 5:00 AM |
| 6:00 PM | 6:00 AM |
| 7:00 PM | 7:00 AM |
| 8:00 PM | 8:00 AM |
| 9:00 PM | 9:00 AM |
| 10:00 PM | 10:00 AM |
| 11:00 PM | 11:00 AM |
How to Convert Australian Western Standard Time to Atlantic Standard Time
Formula
To convert Australian Western Standard Time (AWST) to Atlantic Standard Time (AST): Convert AWST to AST
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 Atlantic Standard Time (AST)
Atlantic Standard Time (AST, IANA: America/Halifax, America/Puerto_Rico) is the time zone for the Canadian Maritime provinces and most of the Caribbean, set at UTC-4:00. AST is observed in: Nova Scotia, New Brunswick, Prince Edward Island, Labrador (partially), Newfoundland's Labrador portion, eastern Quebec, Puerto Rico, US Virgin Islands, Bermuda, Anguilla, Antigua, Aruba, Barbados, British Virgin Islands, Curaçao, Dominica, Grenada, Guadeloupe, Martinique, Saint Lucia, Saint Vincent, Trinidad and Tobago, and Venezuela (since 2007). Canadian Maritime provinces observe AST in winter and switch to ADT = UTC-3:00 in summer per the Energy Policy Act-aligned Canadian schedule. The Caribbean territories (Puerto Rico, USVI, Bermuda) and US territories observe AST year-round without DST per their territorial governments. AST is the same offset as EDT (Eastern Daylight Time) during US summer months, so Halifax and New York are on the same clock in summer but Halifax is one hour ahead in winter.