Offset
The time difference between Indochina Time and Hawaii Time is 17 hours.
Indochina Time (ICT) is ahead of Hawaii Time (HST).
ICT: UTC+7
HST: UTC-10
Neither Indochina Time nor Hawaii Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Indochina Time and Hawaii Time don't overlap on the same weekday. Hawaii Time is 17 hours behind Indochina Time.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Indochina Time is also known as ICT. To call Thailand, dial +66.
Hawaii Time is also known as HST. To call United States, dial +1.
Hawaii Time is approximately 6,600 miles northeast of Indochina Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| ICT | HST | Day |
|---|---|---|
| 12:00 am | 7:00 am | -1 day |
| 1:00 am | 8:00 am | -1 day |
| 2:00 am | 9:00 am | -1 day |
| 3:00 am | 10:00 am | -1 day |
| 4:00 am | 11:00 am | -1 day |
| 5:00 am | 12:00 pm | -1 day |
| 6:00 am | 1:00 pm | -1 day |
| 7:00 am | 2:00 pm | -1 day |
| 8:00 am | 3:00 pm | -1 day |
| 9:00 am | 4:00 pm | -1 day |
| 10:00 am | 5:00 pm | -1 day |
| 11:00 am | 6:00 pm | -1 day |
| 12:00 pm | 7:00 pm | -1 day |
| 1:00 pm | 8:00 pm | -1 day |
| 2:00 pm | 9:00 pm | -1 day |
| 3:00 pm | 10:00 pm | -1 day |
| 4:00 pm | 11:00 pm | -1 day |
| 5:00 pm | 12:00 am | Same day |
| 6:00 pm | 1:00 am | Same day |
| 7:00 pm | 2:00 am | Same day |
| 8:00 pm | 3:00 am | Same day |
| 9:00 pm | 4:00 am | Same day |
| 10:00 pm | 5:00 am | Same day |
| 11:00 pm | 6:00 am | Same day |
Daylight saving time
Neither Indochina Time nor Hawaii Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:50 AM
- Sunset
- 6:44 PM
- Day length
- 12h 54m
- Sunrise
- 5:50 AM
- Sunset
- 7:12 PM
- Day length
- 13h 22m
Daylight overlap: 6h 21m — 5:50 AM–12:12 PM in Indochina Time (12:50 PM–7:12 PM in Hawaii Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Indochina Time
Cities in Hawaii Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Indochina Time
- HAN
- BKK
- DMK
- HPH
Airports in Hawaii Time
- HNL
Related conversions
Common conversions
- What is 9:00 am ICT in HST?
- 9:00 am ICT is 4:00 pm HST, the previous day.
- What is 12:00 pm ICT in HST?
- 12:00 pm ICT is 7:00 pm HST, the previous day.
- What is 12:30 pm ICT in HST?
- 12:30 pm ICT is 7:30 pm HST, the previous day.
- What is 2:00 pm ICT in HST?
- 2:00 pm ICT is 9:00 pm HST, the previous day.
- What is 5:00 pm ICT in HST?
- 5:00 pm ICT is 12:00 am HST.
- What is 11:30 pm ICT in HST?
- 11:30 pm ICT is 6:30 am HST.