Offset
The time difference between Mumbai and Lisbon is 4.5 hours.
Mumbai (IST) is ahead of Lisbon (BST).
IST: UTC+5:30
BST: UTC+1
Lisbon is currently observing daylight saving time; Mumbai is not.
When to schedule
Business-hours overlap: 2 PM–5 PM in Mumbai (9 AM–12 PM in Lisbon).
Both teams are in working hours during this window on weekdays.
Suggested time: 3:00 PM Mumbai (10:30 AM Lisbon).
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.
Portugal
- New Year's DayThu, Jan 1
- CarnivalTue, Feb 17
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- Freedom DaySat, Apr 25
- Labour DayFri, May 1
- Corpus ChristiThu, Jun 4
- National DayWed, Jun 10
- Assumption DaySat, Aug 15
- Republic DayMon, Oct 5
- All Saints DaySun, Nov 1
- Restoration of IndependenceTue, Dec 1
- Immaculate ConceptionTue, Dec 8
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Mumbai | Lisbon | Day |
|---|---|---|
| 12:00 am | 7:30 pm | -1 day |
| 1:00 am | 8:30 pm | -1 day |
| 2:00 am | 9:30 pm | -1 day |
| 3:00 am | 10:30 pm | -1 day |
| 4:00 am | 11:30 pm | -1 day |
| 5:00 am | 12:30 am | Same day |
| 6:00 am | 1:30 am | Same day |
| 7:00 am | 2:30 am | Same day |
| 8:00 am | 3:30 am | Same day |
| 9:00 am | 4:30 am | Same day |
| 10:00 am | 5:30 am | Same day |
| 11:00 am | 6:30 am | Same day |
| 12:00 pm | 7:30 am | Same day |
| 1:00 pm | 8:30 am | Same day |
| 2:00 pm | 9:30 am | Same day |
| 3:00 pm | 10:30 am | Same day |
| 4:00 pm | 11:30 am | Same day |
| 5:00 pm | 12:30 pm | Same day |
| 6:00 pm | 1:30 pm | Same day |
| 7:00 pm | 2:30 pm | Same day |
| 8:00 pm | 3:30 pm | Same day |
| 9:00 pm | 4:30 pm | Same day |
| 10:00 pm | 5:30 pm | Same day |
| 11:00 pm | 6:30 pm | Same day |
Daylight saving time
Lisbon observes daylight saving time; Mumbai does not. The offset between the two zones changes when Lisbon transitions: on Sunday, October 25, 2026, clocks fall back from BST to GMT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:01 AM
- Sunset
- 7:16 PM
- Day length
- 13h 15m
- Sunrise
- 6:12 AM
- Sunset
- 9:01 PM
- Day length
- 14h 48m
Daylight overlap: 8h 34m — 10:42 AM–7:16 PM in Mumbai (6:12 AM–2:46 PM in Lisbon). Both locations are in daylight during this window.
Cities in these zones
Other cities in India Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Airports in Greenwich Mean Time
- CAT
- LIS
Related conversions
Common conversions
- What is 9:00 am Mumbai in Lisbon?
- 9:00 am Mumbai is 4:30 am Lisbon.
- What is 12:00 pm Mumbai in Lisbon?
- 12:00 pm Mumbai is 7:30 am Lisbon.
- What is 12:30 pm Mumbai in Lisbon?
- 12:30 pm Mumbai is 8:00 am Lisbon.
- What is 2:00 pm Mumbai in Lisbon?
- 2:00 pm Mumbai is 9:30 am Lisbon.
- What is 5:00 pm Mumbai in Lisbon?
- 5:00 pm Mumbai is 12:30 pm Lisbon.
- What is 11:30 pm Mumbai in Lisbon?
- 11:30 pm Mumbai is 7:00 pm Lisbon.