ICT to HST Converter
HST is 17 hours behind ICT
ICT to HST Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in HST
| ICT | HST |
|---|---|
| 12:00 AM | 7:00 AM -1d |
| 1:00 AM | 8:00 AM -1d |
| 2:00 AM | 9:00 AM -1d |
| 3:00 AM | 10:00 AM -1d |
| 4:00 AM | 11:00 AM -1d |
| 5:00 AM | 12:00 PM -1d |
| 6:00 AM | 1:00 PM -1d |
| 7:00 AM | 2:00 PM -1d |
| 8:00 AM | 3:00 PM -1d |
| 9:00 AM | 4:00 PM -1d |
| 10:00 AM | 5:00 PM -1d |
| 11:00 AM | 6:00 PM -1d |
| 12:00 PM | 7:00 PM -1d |
| 1:00 PM | 8:00 PM -1d |
| 2:00 PM | 9:00 PM -1d |
| 3:00 PM | 10:00 PM -1d |
| 4:00 PM | 11:00 PM -1d |
| 5:00 PM | 12:00 AM |
| 6:00 PM | 1:00 AM |
| 7:00 PM | 2:00 AM |
| 8:00 PM | 3:00 AM |
| 9:00 PM | 4:00 AM |
| 10:00 PM | 5:00 AM |
| 11:00 PM | 6:00 AM |
Converting Indochina Time to Hawaii Standard Time
Indochina Time (ICT) and Hawaii Standard Time (HST) are separated by a 17 hours time difference. HST is 17 hours behind ICT. ICT is UTC+7, used in Thailand, Vietnam, Cambodia, while HST is UTC-10, used in United States.
When converting from ICT to HST, the key reference points to remember are: 9:00 AM ICT equals 4:00 PM HST, 12:00 PM noon ICT equals 7:00 PM HST, and 5:00 PM ICT equals 12:00 AM HST. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across ICT and HST
For professionals scheduling meetings between ICT and HST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 17 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
ICT does not observe Daylight Saving Time, maintaining UTC+7 year-round. HST does not observe DST, staying at UTC-10 year-round.