Offset
The time difference between Cuba Standard Time and India Standard Time is 9.5 hours.
Cuba Standard Time (CDT) is behind India Standard Time (IST).
CDT: UTC-4
IST: UTC+5:30
Cuba Standard Time is currently observing daylight saving time; India Standard Time is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Cuba Standard Time and India Standard Time don't overlap on the same weekday. India Standard Time is 10 hours ahead of Cuba Standard Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–11 AM in Cuba Standard Time (4 PM–8 PM in India Standard Time) — suggest 9:00 AM Cuba Standard Time (6:30 PM India Standard Time).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Cuba
- Triumph of the RevolutionThu, Jan 1
- Victory of Fidel CastroFri, Jan 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Day before the Commemoration of the Assault of the Moncada garrisonSat, Jul 25
- Commemoration of the Assault of the Moncada garrisonSun, Jul 26
- Day after the Commemoration of the Assault of the Moncada garrisonMon, Jul 27
- Independence DaySat, Oct 10
- Christmas DayFri, Dec 25
About these zones
Cuba Standard Time is also known as CST, or CDT. To call Cuba, dial +53.
India Standard Time is also known as IST. To call India, dial +91.
India Standard Time is approximately 9,100 miles northeast of Cuba Standard Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| CST-CUBA | IST | Day |
|---|---|---|
| 12:00 am | 9:30 am | Same day |
| 1:00 am | 10:30 am | Same day |
| 2:00 am | 11:30 am | Same day |
| 3:00 am | 12:30 pm | Same day |
| 4:00 am | 1:30 pm | Same day |
| 5:00 am | 2:30 pm | Same day |
| 6:00 am | 3:30 pm | Same day |
| 7:00 am | 4:30 pm | Same day |
| 8:00 am | 5:30 pm | Same day |
| 9:00 am | 6:30 pm | Same day |
| 10:00 am | 7:30 pm | Same day |
| 11:00 am | 8:30 pm | Same day |
| 12:00 pm | 9:30 pm | Same day |
| 1:00 pm | 10:30 pm | Same day |
| 2:00 pm | 11:30 pm | Same day |
| 3:00 pm | 12:30 am | +1 day |
| 4:00 pm | 1:30 am | +1 day |
| 5:00 pm | 2:30 am | +1 day |
| 6:00 pm | 3:30 am | +1 day |
| 7:00 pm | 4:30 am | +1 day |
| 8:00 pm | 5:30 am | +1 day |
| 9:00 pm | 6:30 am | +1 day |
| 10:00 pm | 7:30 am | +1 day |
| 11:00 pm | 8:30 am | +1 day |
Daylight saving time
Cuba Standard Time observes daylight saving time; India Standard Time does not. The offset between the two zones changes when Cuba Standard Time transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:44 AM
- Sunset
- 8:14 PM
- Day length
- 13h 30m
- Sunrise
- 6:01 AM
- Sunset
- 7:15 PM
- Day length
- 13h 14m
Daylight overlap: 3h 1m — 6:44 AM–9:45 AM in Cuba Standard Time (4:14 PM–7:15 PM in India Standard Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Cuba Standard Time
Cities in India Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Cuba Standard Time
- HAV
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Related conversions
Common conversions
- What is 9:00 am CST-CUBA in IST?
- 9:00 am CST-CUBA is 6:30 pm IST.
- What is 12:00 pm CST-CUBA in IST?
- 12:00 pm CST-CUBA is 9:30 pm IST.
- What is 12:30 pm CST-CUBA in IST?
- 12:30 pm CST-CUBA is 10:00 pm IST.
- What is 2:00 pm CST-CUBA in IST?
- 2:00 pm CST-CUBA is 11:30 pm IST.
- What is 5:00 pm CST-CUBA in IST?
- 5:00 pm CST-CUBA is 2:30 am IST, the next day.
- What is 11:30 pm CST-CUBA in IST?
- 11:30 pm CST-CUBA is 9:00 am IST, the next day.