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