Offset
The time difference between Greenwich Mean Time and South Tangerang is 6 hours.
Greenwich Mean Time (BST) is behind South Tangerang (WIB).
BST: UTC+1
WIB: UTC+7
Greenwich Mean Time is currently observing daylight saving time; South Tangerang is not.
When to schedule
Business-hours overlap: 9 AM–11 AM in Greenwich Mean Time (3 PM–5 PM in South Tangerang).
Both teams are in working hours during this window on weekdays.
Suggested time: 10:00 AM Greenwich Mean Time (4:00 PM South Tangerang).
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.
United Kingdom
- Good FridayFri, Apr 3
- Early May Bank HolidayMon, May 4
- Spring Bank HolidayMon, May 25
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
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
Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.
South Tangerang uses Western Indonesia Time (WIB). To call Indonesia, dial +62.
South Tangerang is approximately 7,300 miles east of Greenwich Mean Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| GMT | South Tangerang | Day |
|---|---|---|
| 12:00 am | 6:00 am | Same day |
| 1:00 am | 7:00 am | Same day |
| 2:00 am | 8:00 am | Same day |
| 3:00 am | 9:00 am | Same day |
| 4:00 am | 10:00 am | Same day |
| 5:00 am | 11:00 am | Same day |
| 6:00 am | 12:00 pm | Same day |
| 7:00 am | 1:00 pm | Same day |
| 8:00 am | 2:00 pm | Same day |
| 9:00 am | 3:00 pm | Same day |
| 10:00 am | 4:00 pm | Same day |
| 11:00 am | 5:00 pm | Same day |
| 12:00 pm | 6:00 pm | Same day |
| 1:00 pm | 7:00 pm | Same day |
| 2:00 pm | 8:00 pm | Same day |
| 3:00 pm | 9:00 pm | Same day |
| 4:00 pm | 10:00 pm | Same day |
| 5:00 pm | 11:00 pm | Same day |
| 6:00 pm | 12:00 am | +1 day |
| 7:00 pm | 1:00 am | +1 day |
| 8:00 pm | 2:00 am | +1 day |
| 9:00 pm | 3:00 am | +1 day |
| 10:00 pm | 4:00 am | +1 day |
| 11:00 pm | 5:00 am | +1 day |
Daylight saving time
Greenwich Mean Time observes daylight saving time; South Tangerang does not. The offset between the two zones changes when Greenwich Mean Time 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
- 5:13 AM
- Sunset
- 9:02 PM
- Day length
- 15h 49m
- Sunrise
- 6:06 AM
- Sunset
- 5:55 PM
- Day length
- 11h 49m
Daylight overlap: 6h 42m — 5:13 AM–11:55 AM in Greenwich Mean Time (11:13 AM–5:55 PM in South Tangerang). Both locations are in daylight during this window.
Cities in these zones
Cities in Greenwich Mean Time
Other cities in Western Indonesia Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Greenwich Mean Time
- LCY
- LGW
- LHR
- LTN
- STN
- BHX
- EMA
- GLA
- PIK
- LBA
Airports in Western Indonesia Time
- CGK
- HLP
- SUB
- BDO
- KNO
- PLM
- SRG
Related conversions
Common conversions
- What is 9:00 am GMT in South Tangerang?
- 9:00 am GMT is 3:00 pm South Tangerang.
- What is 12:00 pm GMT in South Tangerang?
- 12:00 pm GMT is 6:00 pm South Tangerang.
- What is 12:30 pm GMT in South Tangerang?
- 12:30 pm GMT is 6:30 pm South Tangerang.
- What is 2:00 pm GMT in South Tangerang?
- 2:00 pm GMT is 8:00 pm South Tangerang.
- What is 5:00 pm GMT in South Tangerang?
- 5:00 pm GMT is 11:00 pm South Tangerang.
- What is 11:30 pm GMT in South Tangerang?
- 11:30 pm GMT is 5:30 am South Tangerang, the next day.