🇮🇳 Kolkata (Calcutta), India
38
- India Standard Time
- UTC+5:30
- Daytime
☀️ 05:32 · 🌙 17:17 · 11 h 46 min
Kolkata (Calcutta) to Chiang Mai: time difference
Chiang Mai is 1 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.
+1 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Kolkata (Calcutta) 08:09 8:09 AM Chiang Mai 09:39 9:39 AM You –:–
08:09 8:09 AM
India Standard Time · UTC+5:30
☀️ 05:32 · 🌙 17:17
09:39 9:39 AM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:07
·
+1 h 30 min
Chiang Mai is 1 h 30 min ahead of Kolkata (Calcutta).
When you, Kolkata (Calcutta) and Chiang Mai 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
🇹🇭 Chiang Mai
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 21:30 9:30 PM 22:30 10:30 PM 23:30 11:30 PM 0:30 12:30 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇳 Kolkata (Calcutta) | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 08:09 | 09:39 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | India Standard Time | Indochina Time |
| UTC offset | UTC+5:30 | UTC+7 |
| Offset from Kolkata (Calcutta) | — | +1 h 30 min |
| IANA zone | Asia/Kolkata | Asia/Bangkok |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:32 | 06:17 |
| Sunset | 17:17 | 18:07 |
| Daylight | 11 h 46 min | 11 h 49 min |
| People on this clock | 4,486,679 | 127,240 |
Compare Kolkata (Calcutta) with another city
More comparisons with Kolkata (Calcutta): the time zones next to it and the far side of the clock.
Big time differences
Kolkata (Calcutta) and Chiang Mai: common questions
What is the time difference between Kolkata (Calcutta) and Chiang Mai?
Chiang Mai is 1 hour and 30 minutes ahead: it uses UTC+7, while Kolkata is on UTC+5:30.
What time is it in Chiang Mai at the start of the working day in Kolkata (Calcutta)?
The working day in Kolkata starts at 9:00 AM; in Chiang Mai it is 10:30 AM at that moment.
What time is it in Chiang Mai when it is 6:00 PM in Kolkata (Calcutta)?
When it is 6:00 PM in Kolkata, it is 7:30 PM in Chiang Mai.
Is there a time when both Kolkata (Calcutta) and Chiang Mai are at work?
Yes: from 9:00 AM to 4:30 PM in Kolkata (10:30 AM to 6:00 PM in Chiang Mai), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Chiang Mai?
From 10:30 PM in Kolkata (Calcutta) it is already the next day in Chiang Mai. The other way round, until 1:30 AM in Chiang Mai it is still the previous day in Kolkata.
Does the time difference between Kolkata (Calcutta) and Chiang Mai change?
No. Neither place uses daylight saving time, so the difference stays 1 hour and 30 minutes all year.
