Time in Hong Kong vs Kolkata
Hong Kong keeps HKT (UTC+8) and Kolkata keeps IST (UTC+5:30) today. Kolkata is 2½ hours behind Hong Kong; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 09:00–16:00 in Kolkata (11:00–18:00 your time).
| City | 00:00 in Hong Kong | 01:00 in Hong Kong | 02:00 in Hong Kong | 03:00 in Hong Kong | 04:00 in Hong Kong | 05:00 in Hong Kong | 06:00 in Hong Kong | 07:00 in Hong Kong | 08:00 in Hong Kong | 09:00 in Hong Kong | 10:00 in Hong Kong | 11:00 in Hong Kong | 12:00 in Hong Kong | 13:00 in Hong Kong | 14:00 in Hong Kong | 15:00 in Hong Kong | 16:00 in Hong Kong | 17:00 in Hong Kong | 18:00 in Hong Kong | 19:00 in Hong Kong | 20:00 in Hong Kong | 21:00 in Hong Kong | 22:00 in Hong Kong | 23:00 in Hong Kong |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hong Kong—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Kolkata—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Hong Kong and Kolkata
Best hours to call
11:00 in Hong Kong
Inside working hours on both sides
09:00 in Kolkata
12:00 in Hong Kong
Inside working hours on both sides
10:00 in Kolkata
13:00 in Hong Kong
Inside working hours on both sides
11:00 in Kolkata
14:00 in Hong Kong
Inside working hours on both sides
12:00 in Kolkata
Where daylight saving pulls them apart
Neither Hong Kong nor Kolkata changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Kolkata of Hong Kong?
Kolkata is 2½ hours behind Hong Kong right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Hong Kong and Kolkata?
Any hour in 11:00–18:00 Hong Kong time is inside working hours in both cities.
Do Hong Kong and Kolkata change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.