IST → HST Converter
India to Hawaii — military (Indian Navy/INDOPACOM), oceanographic research. Very wide gap, mostly async.
IST → HST
12:10 AM
India Standard Time (GMT+5:30)
Friday, June 12, 2026
UTC+5:30 (DST active)
8:40 AM
Hawaii-Aleutian Standard Time (HST)
Thursday, June 11, 2026
UTC-10 (DST active)
Time Zone Converter
IST·New Delhi
12:10 AM
Friday, June 12, 2026
HST·Honolulu
8:40 AM
Thursday, June 11, 2026
Compare Times
| IST | HST |
|---|
Morning
| IST | HST |
|---|---|
| 12:00 AM IST | 8:30 AM HST |
| 1:00 AM IST | 9:30 AM HST |
| 2:00 AM IST | 10:30 AM HST |
| 3:00 AM IST | 11:30 AM HST |
| 4:00 AM IST | 12:30 PM HST |
| 5:00 AM IST | 1:30 PM HST |
| 6:00 AM IST | 2:30 PM HST |
| 7:00 AM IST | 3:30 PM HST |
| 8:00 AM IST | 4:30 PM HST |
| 9:00 AM IST | 5:30 PM HST |
| 10:00 AM IST | 6:30 PM HST |
| 11:00 AM IST | 7:30 PM HST |
Afternoon
| IST | HST |
|---|---|
| 12:00 PM IST | 8:30 PM HST |
| 1:00 PM IST | 9:30 PM HST |
| 2:00 PM IST | 10:30 PM HST |
| 3:00 PM IST | 11:30 PM HST |
| 4:00 PM IST | 12:30 AM HST |
Evening
| IST | HST |
|---|---|
| 5:00 PM IST | 1:30 AM HST |
| 6:00 PM IST | 2:30 AM HST |
| 7:00 PM IST | 3:30 AM HST |
| 8:00 PM IST | 4:30 AM HST |
| 9:00 PM IST | 5:30 AM HST |
| 10:00 PM IST | 6:30 AM HST |
| 11:00 PM IST | 7:30 AM HST |
Frequently Asked Questions: IST to HST
What is the time difference between India Standard Time and Hawaii Time?
HST is 15 hours 30 minutes behind IST (standard time).
What time is midnight in IST in HST?
Midnight (12:00 AM) in India Standard Time translates to 8:30 AM HST in Hawaii Time.
When do business hours overlap between IST and HST?
Standard 9–5 business hours do not overlap between India Standard Time and Hawaii Time. The closest scheduling window is 20:00–21:00 IST (04:30–05:30 HST).
Common Time Conversions
EST · New York →
CST · Chicago →
MST · Denver →
PST · Los Angeles →
AKST · Anchorage →
HST · Honolulu →
UTC · Universal →
GMT · London →
IST · New Delhi →
CET · Paris →
How Time Zone Conversion Works
Time zone conversion works by comparing the UTC offset of one location to another. Every city or region is measured relative to Coordinated Universal Time (UTC), which acts as the global reference point for civil time.
HST is 15 hours 30 minutes behind IST (standard time).
Daylight Saving Time: Neither IST nor HST observes Daylight Saving Time. The 15h 30m offset is constant year-round with no seasonal variation.
Best time to call Honolulu from New Delhi
Planning a remote meeting or international call? The optimal business hours overlap between New Delhi and Honolulu is challenging, with few shared business hours between the two zones.
Try Meeting Planner for multi-city group scheduling →IST
20:00–21:00
India Time
HST
04:30–05:30
Hawaii Time
Recommended time: 20:00 IST / 04:30 HST
DST schedule for 2026
Current-year daylight saving start and end dates for the selected zones.
IST · India Time
Standard offset +05:30
India Time remains on a constant standard offset for the year.
India does not observe daylight saving time. The IST offset of UTC+5:30 is constant year-round. Note: 'IST' is sometimes ambiguous — it can also refer to Irish Standard Time (Ireland's summer time). On TimeAtlas, IST refers exclusively to India Standard Time.
HST · Hawaii Time
Standard offset −10:00
Hawaii Time remains on a constant standard offset for the year.
Hawaii does not observe DST. The Aleutian Islands portion of HAST does observe DST (becoming HADT, UTC−9), but population there is negligible. For practical purposes HST is a fixed-offset zone.
Principal Cities
IST — India Time
- MumbaiIndia
- DelhiIndia
- BangaloreIndia
- HyderabadIndia
HST — Hawaii Time
- HonoluluUnited States
- Pearl CityUnited States
- HiloUnited States
- KailuaUnited States