Offset
The time difference between Kallakurichi and Greenwich Mean Time is 4.5 hours.
Kallakurichi (IST) is ahead of Greenwich Mean Time (BST).
IST: UTC+5:30
BST: UTC+1
Greenwich Mean Time is currently observing daylight saving time; Kallakurichi is not.
When to schedule
Business-hours overlap: 2 PM–5 PM in Kallakurichi (9 AM–12 PM in Greenwich Mean Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 3:00 PM Kallakurichi (10:30 AM Greenwich Mean Time).
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
About these zones
Kallakurichi uses India Standard Time (IST). To call India, dial +91.
Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.
Greenwich Mean Time is approximately 5,100 miles northwest of Kallakurichi.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Kallakurichi | GMT | 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
Greenwich Mean Time observes daylight saving time; Kallakurichi 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
- 5:50 AM
- Sunset
- 6:38 PM
- Day length
- 12h 48m
- Sunrise
- 4:45 AM
- Sunset
- 9:17 PM
- Day length
- 16h 32m
Daylight overlap: 9h 24m — 9:15 AM–6:38 PM in Kallakurichi (4:45 AM–2:08 PM in Greenwich Mean Time). Both locations are in daylight during this window.
Cities in these zones
Other cities in India Standard Time
Cities in Greenwich Mean 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
- LCY
- LGW
- LHR
- LTN
- STN
- BHX
- EMA
- GLA
- PIK
- LBA
Related conversions
Common conversions
- What is 9:00 am Kallakurichi in GMT?
- 9:00 am Kallakurichi is 4:30 am GMT.
- What is 12:00 pm Kallakurichi in GMT?
- 12:00 pm Kallakurichi is 7:30 am GMT.
- What is 12:30 pm Kallakurichi in GMT?
- 12:30 pm Kallakurichi is 8:00 am GMT.
- What is 2:00 pm Kallakurichi in GMT?
- 2:00 pm Kallakurichi is 9:30 am GMT.
- What is 5:00 pm Kallakurichi in GMT?
- 5:00 pm Kallakurichi is 12:30 pm GMT.
- What is 11:30 pm Kallakurichi in GMT?
- 11:30 pm Kallakurichi is 7:00 pm GMT.