Convert Hawaii Standard Time to Gulf Standard Time
Instantly convert Hawaii Standard Time (HST) to Gulf Standard Time (GST) with our free online calculator.
Hawaii Standard Time
07:20:49 PM
Tue, Jun 23 (HST)
Gulf Standard Time
09:20:49 AM
Wed, Jun 24 (GST)
Convert a Specific Time
24-Hour Comparison
| HST | GST |
|---|---|
| 12:00 AM | 2:00 PM |
| 1:00 AM | 3:00 PM |
| 2:00 AM | 4:00 PM |
| 3:00 AM | 5:00 PM |
| 4:00 AM | 6:00 PM |
| 5:00 AM | 7:00 PM |
| 6:00 AM | 8:00 PM |
| 7:00 AM | 9:00 PM |
| 8:00 AM | 10:00 PM |
| 9:00 AM | 11:00 PM |
| 10:00 AM | 12:00 AM(+1d) |
| 11:00 AM | 1:00 AM(+1d) |
| 12:00 PM | 2:00 AM(+1d) |
| 1:00 PM | 3:00 AM(+1d) |
| 2:00 PM | 4:00 AM(+1d) |
| 3:00 PM | 5:00 AM(+1d) |
| 4:00 PM | 6:00 AM(+1d) |
| 5:00 PM | 7:00 AM(+1d) |
| 6:00 PM | 8:00 AM(+1d) |
| 7:00 PM | 9:00 AM(+1d) |
| 8:00 PM | 10:00 AM(+1d) |
| 9:00 PM | 11:00 AM(+1d) |
| 10:00 PM | 12:00 PM(+1d) |
| 11:00 PM | 1:00 PM(+1d) |
How to Convert Hawaii Standard Time to Gulf Standard Time
Formula
To convert Hawaii Standard Time (HST) to Gulf Standard Time (GST): Convert HST to GST
About Hawaii Standard Time (HST)
Hawaii Standard Time (HST, IANA: Pacific/Honolulu) is the time zone for the State of Hawaii and the Aleutian Islands of Alaska west of 169.5°W. HST is UTC-10:00 year-round and does not observe Daylight Saving Time per Hawaii Revised Statutes §1-31 (Hawaii opted out of the Uniform Time Act of 1966). When the US mainland switches to Daylight Saving Time in March, the offset from Hawaii to the West Coast (Pacific Time) becomes 3 hours instead of the standard 2 hours. Honolulu sees solar noon at approximately 12:30 PM HST in summer. HST is the same offset as Cook Island Time (CKT) and Tahiti Time (TAHT) in French Polynesia, allowing easy mental conversion across the central Pacific. Time-sensitive activities affected by HST include Pacific tsunami warning system coordination per NOAA NTWC, US military operations from Joint Base Pearl Harbor-Hickam, and the Mauna Kea astronomical observatories' nightly observing schedules.
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.