HST to ICT Time Converter - Live World Clock
Convert time between Hawaii Standard Time (HST) and Indochina Time (ICT). See current time with live clocks.
United States (HST)
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07:27:45 AM
Thursday, August 20, 2026
Thailand (ICT)
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12:27:45 AM
Friday, August 21, 2026
Current Time Difference
HST is -17 hours behind ICT
What is HST (Hawaii Standard Time)?
Hawaii Standard Time (HST) used in Hawaii, UTC-10:00. No DST observed.
Countries and Regions Using HST
Primary Country:
- United States
- States: Hawaii
Key Facts about HST:
- ✓ No Daylight Saving Time
- ✓ Major tourism destination
- ✓ Pacific island timezone
- ✓ Major Cities: Honolulu, Pearl City, Hilo
- ✓ UTC Offset: -10:00
What is ICT (Indochina Time)?
Indochina Time (ICT) used in Southeast Asia, UTC+7:00.
Countries and Regions Using ICT
Primary Country:
- Thailand
Also Used By:
- Vietnam
- Cambodia
- Laos
Key Facts about ICT:
- ✓ Major manufacturing hub
- ✓ Tourism centers
- ✓ No DST observed
- ✓ Major Cities: Bangkok, Hanoi, Ho Chi Minh City, Jakarta
- ✓ UTC Offset: +7:00
HST to ICT Time Difference
Standard Time Difference:
HST is -17 hours behind
Common Use Cases:
- • Business meetings between United States and Thailand
- • International collaboration across timezones
- • Scheduling calls and conferences
Frequently Asked Questions
Which countries are in HST time zone?
United States is the primary country using HST (-10:00).
Which countries are in ICT time zone?
Thailand is the primary country using ICT (+7:00). Other countries include: Vietnam, Cambodia, Laos.
How many hours is HST ahead of ICT?
HST is -17 hours behind ICT.
Does United States observe Daylight Saving Time?
No, United States does not observe Daylight Saving Time. HST remains -10:00 throughout the year.