Convert Gulf Standard Time to Atlantic Standard Time
Instantly convert Gulf Standard Time (GST) to Atlantic Standard Time (AST) with our free online calculator.
Gulf Standard Time
09:20:49 AM
Wed, Jun 24 (GST)
Atlantic Standard Time
01:20:49 AM
Wed, Jun 24 (AST)
Convert a Specific Time
24-Hour Comparison
| GST | AST |
|---|---|
| 12:00 AM | 4:00 PM(-1d) |
| 1:00 AM | 5:00 PM(-1d) |
| 2:00 AM | 6:00 PM(-1d) |
| 3:00 AM | 7:00 PM(-1d) |
| 4:00 AM | 8:00 PM(-1d) |
| 5:00 AM | 9:00 PM(-1d) |
| 6:00 AM | 10:00 PM(-1d) |
| 7:00 AM | 11:00 PM(-1d) |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 PM |
How to Convert Gulf Standard Time to Atlantic Standard Time
Formula
To convert Gulf Standard Time (GST) to Atlantic Standard Time (AST): Convert GST to AST
About Gulf Standard Time (GST)
Gulf Standard Time (GST, IANA: Asia/Dubai, Asia/Muscat) is the civil time of the Arabian Gulf states, set at UTC+4:00 year-round (no DST). GST serves approximately 60 million people across: United Arab Emirates (UAE), Oman, Azerbaijan, Armenia, Georgia (most), Mauritius, Réunion (French territory), Seychelles, Russia's Samara Time region. The 'Gulf Standard Time' specifically refers to UAE + Oman in regional aviation/business usage. GST shares the same UTC offset as Mauritius Time (MUT), Armenia Time (AMT), Azerbaijan Time (AZT), Georgia Time (GET), and is +1 hour ahead of Moscow / Saudi Arabia. Major GST cities: Dubai (3.5M city, 4.8M metro — UAE + global trade hub), Abu Dhabi (1.5M city, 2.9M metro — UAE capital), Sharjah (1.7M), Muscat Oman (1.7M metro — capital), Salalah Oman (370K), Baku Azerbaijan (2.3M), Yerevan Armenia (1.1M), Tbilisi Georgia (1.2M). Affects: DFM (Dubai Financial Market) + ADX (Abu Dhabi Securities Exchange) trading hours, Emirates Airlines / Etihad Airways hub-operations scheduling, Hajj/Umrah pilgrimage timings for travelers transiting Dubai, Dubai Expo + Burj Khalifa fountain shows + Dubai Mall operating hours.
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.