Offset
Kolkata (GMT+5:30) is currently ahead of Mexico City (CST).
GMT+5:30: UTC+5:30
CST: UTC-6
Neither Kolkata nor Mexico City is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Kolkata and Mexico City don't overlap on the same weekday. Mexico City is 11 hours behind Kolkata.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
About these zones
Kolkata uses India Standard Time (IST).
Mexico City uses America/Mexico_City.
Kolkata and Mexico City are approximately 9,500 miles apart.
Quick reference
Full 24-hour conversion table.
| Kolkata | Mexico City | Day |
|---|---|---|
| 12:00 am | 12:30 pm | -1 day |
| 1:00 am | 1:30 pm | -1 day |
| 2:00 am | 2:30 pm | -1 day |
| 3:00 am | 3:30 pm | -1 day |
| 4:00 am | 4:30 pm | -1 day |
| 5:00 am | 5:30 pm | -1 day |
| 6:00 am | 6:30 pm | -1 day |
| 7:00 am | 7:30 pm | -1 day |
| 8:00 am | 8:30 pm | -1 day |
| 9:00 am | 9:30 pm | -1 day |
| 10:00 am | 10:30 pm | -1 day |
| 11:00 am | 11:30 pm | -1 day |
| 12:00 pm | 12:30 am | Same day |
| 1:00 pm | 1:30 am | Same day |
| 2:00 pm | 2:30 am | Same day |
| 3:00 pm | 3:30 am | Same day |
| 4:00 pm | 4:30 am | Same day |
| 5:00 pm | 5:30 am | Same day |
| 6:00 pm | 6:30 am | Same day |
| 7:00 pm | 7:30 am | Same day |
| 8:00 pm | 8:30 am | Same day |
| 9:00 pm | 9:30 am | Same day |
| 10:00 pm | 10:30 am | Same day |
| 11:00 pm | 11:30 am | Same day |
Daylight saving time
Neither Kolkata nor Mexico City observes daylight saving time. The offset between these zones remains constant year-round.
Daylight today
- Sunrise
- 4:54 AM
- Sunset
- 6:16 PM
- Day length
- 13h 22m
- Sunrise
- 5:59 AM
- Sunset
- 7:10 PM
- Day length
- 13h 11m
Daylight overlap: 47m — 5:29 PM–6:16 PM in Kolkata (5:59 AM–6:46 AM in Mexico City). Both locations are in daylight during this window.
Cities in these zones
Other cities in India Standard Time
Other cities in America/Mexico_City
Airports in these zones
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Airports in America/Mexico_City
- MEX
- NLU
- TLC
- PBC
- QRO
- BJX
- GDL