Offset
The time difference between Hawaii Time and Indochina Time is 17 hours.
Hawaii Time (HST) is behind Indochina Time (ICT).
HST: UTC-10
ICT: UTC+7
Neither Hawaii Time nor Indochina Time is currently observing daylight saving time.
When to schedule
Business-hours overlap: 4 PM–5 PM in Hawaii Time (9 AM–10 AM the next day in Indochina Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 4:00 PM Hawaii Time (9:00 AM Indochina Time).
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
Hawaii Time is also known as HST. To call United States, dial +1.
Indochina Time is also known as ICT. To call Thailand, dial +66.
Indochina Time is approximately 6,600 miles west of Hawaii Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| HST | ICT | Day |
|---|---|---|
| 12:00 am | 5:00 pm | Same day |
| 1:00 am | 6:00 pm | Same day |
| 2:00 am | 7:00 pm | Same day |
| 3:00 am | 8:00 pm | Same day |
| 4:00 am | 9:00 pm | Same day |
| 5:00 am | 10:00 pm | Same day |
| 6:00 am | 11:00 pm | Same day |
| 7:00 am | 12:00 am | +1 day |
| 8:00 am | 1:00 am | +1 day |
| 9:00 am | 2:00 am | +1 day |
| 10:00 am | 3:00 am | +1 day |
| 11:00 am | 4:00 am | +1 day |
| 12:00 pm | 5:00 am | +1 day |
| 1:00 pm | 6:00 am | +1 day |
| 2:00 pm | 7:00 am | +1 day |
| 3:00 pm | 8:00 am | +1 day |
| 4:00 pm | 9:00 am | +1 day |
| 5:00 pm | 10:00 am | +1 day |
| 6:00 pm | 11:00 am | +1 day |
| 7:00 pm | 12:00 pm | +1 day |
| 8:00 pm | 1:00 pm | +1 day |
| 9:00 pm | 2:00 pm | +1 day |
| 10:00 pm | 3:00 pm | +1 day |
| 11:00 pm | 4:00 pm | +1 day |
Daylight saving time
Neither Hawaii Time nor Indochina 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
- 7:12 PM
- Day length
- 13h 22m
- Sunrise
- 5:50 AM
- Sunset
- 6:44 PM
- Day length
- 12h 54m
Daylight overlap: 6h 21m — 12:50 PM–7:12 PM in Hawaii Time (5:50 AM–12:12 PM in Indochina Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Hawaii Time
Cities in Indochina Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Hawaii Time
- HNL
Airports in Indochina Time
- HAN
- BKK
- DMK
- HPH
Related conversions
Common conversions
- What is 9:00 am HST in ICT?
- 9:00 am HST is 2:00 am ICT, the next day.
- What is 12:00 pm HST in ICT?
- 12:00 pm HST is 5:00 am ICT, the next day.
- What is 12:30 pm HST in ICT?
- 12:30 pm HST is 5:30 am ICT, the next day.
- What is 2:00 pm HST in ICT?
- 2:00 pm HST is 7:00 am ICT, the next day.
- What is 5:00 pm HST in ICT?
- 5:00 pm HST is 10:00 am ICT, the next day.
- What is 11:30 pm HST in ICT?
- 11:30 pm HST is 4:30 pm ICT, the next day.