🇮🇳 Kolkata (Calcutta), India
09
- India Standard Time
- UTC+5:30
- Daytime
☀️ 05:44 · 🌙 16:58 · 11 h 13 min
Kolkata (Calcutta) to Hong Kong: time difference
Hong Kong is 2 h 30 min ahead of Kolkata (Calcutta). Live clocks for both, the working hours they share, and how each one sits against your own time.
🇭🇰 Hong Kong, Hong Kong (China)
09
- Hong Kong Standard Time
- UTC+8
- Sunset
☀️ 06:31 · 🌙 17:45 · 11 h 14 min
+2 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Kolkata (Calcutta) 15:16 3:16 PM Hong Kong 17:46 5:46 PM You –:–
15:16 3:16 PM
India Standard Time · UTC+5:30
☀️ 05:44 · 🌙 16:58
17:46 5:46 PM
Hong Kong Standard Time · UTC+8
☀️ 06:31 · 🌙 17:45
·
+2 h 30 min
Hong Kong is 2 h 30 min ahead of Kolkata (Calcutta).
When you, Kolkata (Calcutta) and Hong Kong are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇳 Kolkata (Calcutta)
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇭🇰 Hong Kong
2:30 2:30 AM 3:30 3:30 AM 4:30 4:30 AM 5:30 5:30 AM 6:30 6:30 AM 7:30 7:30 AM 8:30 8:30 AM 9:30 9:30 AM 10:30 10:30 AM 11:30 11:30 AM 12:30 12:30 PM 13:30 1:30 PM 14:30 2:30 PM 15:30 3:30 PM 16:30 4:30 PM 17:30 5:30 PM 18:30 6:30 PM 19:30 7:30 PM 20:30 8:30 PM 21:30 9:30 PM 22:30 10:30 PM 23:30 11:30 PM 0:30 12:30 AM 1:30 1:30 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇳 Kolkata (Calcutta) | 🇭🇰 Hong Kong |
|---|---|---|
| Local time | 15:16 | 17:46 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | India Standard Time | Hong Kong Standard Time |
| UTC offset | UTC+5:30 | UTC+8 |
| Offset from Kolkata (Calcutta) | — | +2 h 30 min |
| IANA zone | Asia/Kolkata | Asia/Hong Kong |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:44 | 06:31 |
| Sunset | 16:58 | 17:45 |
| Daylight | 11 h 13 min | 11 h 14 min |
| People on this clock | 4,486,679 | 1,367,900 |
Compare Kolkata (Calcutta) with another city
More comparisons with Kolkata (Calcutta): the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Kolkata (Calcutta) and Hong Kong: common questions
How far ahead of Kolkata (Calcutta) is Hong Kong?
Hong Kong is 2 hours and 30 minutes ahead of Kolkata: UTC+8 against UTC+5:30.
What time is it in Hong Kong when it is 9:00 AM in Kolkata (Calcutta)?
When it is 9:00 AM in Kolkata, it is 11:30 AM in Hong Kong.
If it is 6:00 PM in Kolkata (Calcutta), what time is it in Hong Kong?
At 6:00 PM in Kolkata, clocks in Hong Kong show 8:30 PM.
Is there a time when both Kolkata (Calcutta) and Hong Kong are at work?
Yes: from 9:00 AM to 3:30 PM in Kolkata (11:30 AM to 6:00 PM in Hong Kong), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Hong Kong compared with Kolkata (Calcutta)?
The new day starts in Hong Kong earlier: at 9:30 PM in Kolkata it is already midnight there. Until 2:30 AM in Hong Kong, Kolkata is still on the previous day.
Does the time gap between Kolkata (Calcutta) and Hong Kong change during the year?
No, the clocks change neither in Kolkata nor in Hong Kong, so the gap is 2 hours and 30 minutes all year round.
