🇭🇰 Hong Kong, Hong Kong (China)
32
- Hong Kong Standard Time
- UTC+8
- Night
☀️ 06:31 · 🌙 17:45 · 11 h 14 min
Hong Kong to Kolkata (Calcutta): time difference
Kolkata (Calcutta) is 2 h 30 min behind Hong Kong. Live clocks for both, the working hours they share, and how each one sits against your own time.
−2 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Hong Kong 22:38 10:38 PM Kolkata (Calcutta) 20:08 8:08 PM You –:–
22:38 10:38 PM
Hong Kong Standard Time · UTC+8
☀️ 06:31 · 🌙 17:45
20:08 8:08 PM
India Standard Time · UTC+5:30
☀️ 05:44 · 🌙 16:58
·
−2 h 30 min
Kolkata (Calcutta) is 2 h 30 min behind Hong Kong.
When you, Hong Kong and Kolkata (Calcutta) are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇭🇰 Hong Kong
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
🇮🇳 Kolkata (Calcutta)
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇭🇰 Hong Kong | 🇮🇳 Kolkata (Calcutta) |
|---|---|---|
| Local time | 22:38 | 20:08 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Hong Kong Standard Time | India Standard Time |
| UTC offset | UTC+8 | UTC+5:30 |
| Offset from Hong Kong | — | −2 h 30 min |
| IANA zone | Asia/Hong Kong | Asia/Kolkata |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:31 | 05:44 |
| Sunset | 17:45 | 16:58 |
| Daylight | 11 h 14 min | 11 h 13 min |
| People on this clock | 1,367,900 | 4,486,679 |
Compare Hong Kong with another city
More comparisons with Hong Kong: the time zones next to it and the far side of the clock.
Big time differences
Hong Kong and Kolkata (Calcutta): common questions
How far behind Hong Kong is Kolkata (Calcutta)?
Kolkata is 2 hours and 30 minutes behind Hong Kong: UTC+5:30 against UTC+8.
What time is it in Kolkata (Calcutta) when it is 9:00 AM in Hong Kong?
When it is 9:00 AM in Hong Kong, it is 6:30 AM in Kolkata.
What time is it in Kolkata (Calcutta) at the end of the working day in Hong Kong?
The working day in Hong Kong ends at 6:00 PM; in Kolkata it is 3:30 PM at that moment.
Is there a time when both Hong Kong and Kolkata (Calcutta) are at work?
Yes: from 11:30 AM to 6:00 PM in Hong Kong (9:00 AM to 3:30 PM in Kolkata), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Kolkata (Calcutta) compared with Hong Kong?
The new day starts in Kolkata later: until 2:30 AM in Hong Kong, it is still the previous day there. From 9:30 PM in Kolkata, Hong Kong is already on the next day.
Does the time gap between Hong Kong and Kolkata (Calcutta) change during the year?
No, the clocks change neither in Hong Kong nor in Kolkata, so the gap is 2 hours and 30 minutes all year round.
