HST to GST Converter
GST is 14 hours ahead of HST
HST to GST Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in GST
| 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 |
Converting Hawaii Standard Time to Gulf Standard Time
Hawaii Standard Time (HST) and Gulf Standard Time (GST) are separated by a 14 hours time difference. GST is 14 hours ahead of HST. HST is UTC-10, used in United States, while GST is UTC+4, used in United Arab Emirates, Oman.
When converting from HST to GST, the key reference points to remember are: 9:00 AM HST equals 11:00 PM GST, 12:00 PM noon HST equals 2:00 AM GST, and 5:00 PM HST equals 7:00 AM GST. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across HST and GST
For professionals scheduling meetings between HST and GST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 14 hours difference, the window of overlap may be limited, making early morning or late evening calls necessary for one party. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
HST does not observe Daylight Saving Time, maintaining UTC-10 year-round. GST does not observe DST, staying at UTC+4 year-round.