Time in Donostia / San Sebastián vs Mumbai
Donostia / San Sebastián keeps CEST (UTC+2) and Mumbai keeps IST (UTC+5:30) today. Mumbai is 3½ hours ahead of Donostia / San Sebastián; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 13:00–18:00 in Mumbai (09:00–14:00 your time).
| City | 00:00 in Donostia / San Sebastián | 01:00 in Donostia / San Sebastián | 02:00 in Donostia / San Sebastián | 03:00 in Donostia / San Sebastián | 04:00 in Donostia / San Sebastián | 05:00 in Donostia / San Sebastián | 06:00 in Donostia / San Sebastián | 07:00 in Donostia / San Sebastián | 08:00 in Donostia / San Sebastián | 09:00 in Donostia / San Sebastián | 10:00 in Donostia / San Sebastián | 11:00 in Donostia / San Sebastián | 12:00 in Donostia / San Sebastián | 13:00 in Donostia / San Sebastián | 14:00 in Donostia / San Sebastián | 15:00 in Donostia / San Sebastián | 16:00 in Donostia / San Sebastián | 17:00 in Donostia / San Sebastián | 18:00 in Donostia / San Sebastián | 19:00 in Donostia / San Sebastián | 20:00 in Donostia / San Sebastián | 21:00 in Donostia / San Sebastián | 22:00 in Donostia / San Sebastián | 23:00 in Donostia / San Sebastián |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Donostia / San Sebastián—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Mumbai—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Donostia / San Sebastián and Mumbai
Best hours to call
Where daylight saving pulls them apart
Donostia / San Sebastián next changes on Sunday 25 October 2026. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.
Also useful
Common questions
How many hours ahead is Mumbai of Donostia / San Sebastián?
Mumbai is 3½ hours ahead of Donostia / San Sebastián right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Donostia / San Sebastián and Mumbai?
Any hour in 09:00–14:00 Donostia / San Sebastián time is inside working hours in both cities.
Do Donostia / San Sebastián and Mumbai change clocks on the same date?
Only one of them does, so the gap between them changes twice a year even though neither city moved relative to the sun.