Offset
The time difference between Surabaya and Delhi is 1.5 hours.
Surabaya (WIB) is ahead of Delhi (IST).
WIB: UTC+7
IST: UTC+5:30
Neither Surabaya nor Delhi is currently observing daylight saving time.
When to schedule
Business-hours overlap: 11 AM–5 PM in Surabaya (9 AM–3 PM in Delhi).
Both teams are in working hours during this window on weekdays.
Suggested time: 2:00 PM Surabaya (12:30 PM Delhi).
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.
Indonesia
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- Labour DayFri, May 1
- Ascension DayThu, May 14
- Pancasila DayMon, Jun 1
- Independence DayMon, Aug 17
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Surabaya | Delhi | Day |
|---|---|---|
| 12:00 am | 10:30 pm | -1 day |
| 1:00 am | 11:30 pm | -1 day |
| 2:00 am | 12:30 am | Same day |
| 3:00 am | 1:30 am | Same day |
| 4:00 am | 2:30 am | Same day |
| 5:00 am | 3:30 am | Same day |
| 6:00 am | 4:30 am | Same day |
| 7:00 am | 5:30 am | Same day |
| 8:00 am | 6:30 am | Same day |
| 9:00 am | 7:30 am | Same day |
| 10:00 am | 8:30 am | Same day |
| 11:00 am | 9:30 am | Same day |
| 12:00 pm | 10:30 am | Same day |
| 1:00 pm | 11:30 am | Same day |
| 2:00 pm | 12:30 pm | Same day |
| 3:00 pm | 1:30 pm | Same day |
| 4:00 pm | 2:30 pm | Same day |
| 5:00 pm | 3:30 pm | Same day |
| 6:00 pm | 4:30 pm | Same day |
| 7:00 pm | 5:30 pm | Same day |
| 8:00 pm | 6:30 pm | Same day |
| 9:00 pm | 7:30 pm | Same day |
| 10:00 pm | 8:30 pm | Same day |
| 11:00 pm | 9:30 pm | Same day |
Daylight saving time
Neither Surabaya nor Delhi observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:37 AM
- Sunset
- 5:20 PM
- Day length
- 11h 43m
- Sunrise
- 5:24 AM
- Sunset
- 7:18 PM
- Day length
- 13h 55m
Daylight overlap: 10h 27m — 6:54 AM–5:20 PM in Surabaya (5:24 AM–3:50 PM in Delhi). Both locations are in daylight during this window.
Cities in these zones
Other cities in Western Indonesia Time
Other cities in India Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Western Indonesia Time
- CGK
- HLP
- SUB
- BDO
- KNO
- PLM
- SRG
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Related conversions
Common conversions
- What is 9:00 am Surabaya in Delhi?
- 9:00 am Surabaya is 7:30 am Delhi.
- What is 12:00 pm Surabaya in Delhi?
- 12:00 pm Surabaya is 10:30 am Delhi.
- What is 12:30 pm Surabaya in Delhi?
- 12:30 pm Surabaya is 11:00 am Delhi.
- What is 2:00 pm Surabaya in Delhi?
- 2:00 pm Surabaya is 12:30 pm Delhi.
- What is 5:00 pm Surabaya in Delhi?
- 5:00 pm Surabaya is 3:30 pm Delhi.
- What is 11:30 pm Surabaya in Delhi?
- 11:30 pm Surabaya is 10:00 pm Delhi.