Austin, TX to Kolkata (Calcutta): time difference
Kolkata (Calcutta) is 10 h 30 min ahead of Austin, TX. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇮🇳 Kolkata (Calcutta), India
14
- India Standard Time
- UTC+5:30
- Daytime
☀️ 05:32 · 🌙 17:17 · 11 h 46 min
+10 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Austin, TX 22:20 10:20 PM Kolkata (Calcutta) 08:50 8:50 AM You –:–
22:20 10:20 PM
Central Daylight Time · UTC-5
☀️ 07:30 · 🌙 19:08
08:50 8:50 AM
India Standard Time · UTC+5:30
☀️ 05:32 · 🌙 17:17
·
+10 h 30 min
Kolkata (Calcutta) is 10 h 30 min ahead of Austin, TX.
When you, Austin, TX 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
🇺🇸 Austin, TX
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)
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 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
📍 Your time
- Asleep
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- Evening
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Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇮🇳 Kolkata (Calcutta) |
|---|---|---|
| Local time | 22:20 | 08:50 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Central Daylight Time | India Standard Time |
| UTC offset | UTC-5 | UTC+5:30 |
| Offset from Austin, TX | — | +10 h 30 min |
| IANA zone | America/Chicago | Asia/Kolkata |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:30 | 05:32 |
| Sunset | 19:08 | 17:17 |
| Daylight | 11 h 38 min | 11 h 46 min |
| People on this clock | 974,447 | 4,486,679 |
Compare Austin, TX with another city
More comparisons with Austin, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Austin, TX and Kolkata (Calcutta): common questions
What is the time difference between Austin, TX, and Kolkata (Calcutta)?
Kolkata is 10 hours and 30 minutes ahead: it uses UTC+5:30, while Austin is on UTC−5.
What time is it in Kolkata (Calcutta) when it is 9:00 AM in Austin, TX?
When it is 9:00 AM in Austin, it is 7:30 PM in Kolkata.
What time is it in Kolkata (Calcutta) when it is 6:00 PM in Austin, TX?
When it is 6:00 PM in Austin, it is 4:30 AM (the next day) in Kolkata.
When is a good time to call Kolkata (Calcutta) from Austin, TX?
Working hours (9:00 AM–6:00 PM) in Austin and in Kolkata do not overlap. At 9:00 AM in Austin it is 7:30 PM in Kolkata; when the working day starts in Kolkata, it is 10:30 PM (the previous day) in Austin.
From what time in Austin, TX, is it tomorrow in Kolkata (Calcutta)?
Once it is 1:30 PM in Austin, the date in Kolkata has already changed. Until 10:30 AM in Kolkata, it is still the previous day in Austin.
Is the time difference between Austin, TX, and Kolkata (Calcutta) the same all year?
No. Only Austin switches to summer time, so the gap changes twice a year. From November 1, 2026, Kolkata will be 11 hours and 30 minutes ahead of Austin.
