Offset
The time difference between Greenwich Mean Time and Argentina Time is 4 hours.
Greenwich Mean Time (BST) is ahead of Argentina Time (ART).
BST: UTC+1
ART: UTC-3
Greenwich Mean Time is currently observing daylight saving time; Argentina Time is not.
When to schedule
Business-hours overlap: 1 PM–5 PM in Greenwich Mean Time (9 AM–1 PM in Argentina Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 3:00 PM Greenwich Mean Time (11:00 AM Argentina 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
Argentina
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Day of Remembrance for Truth and JusticeTue, Mar 24
- Day of the Veterans and Fallen of the Malvinas WarThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- May RevolutionMon, May 25
- Anniversary of the Passing of General Martín Miguel de GüemesMon, Jun 15
- General Manuel Belgrano Memorial DaySat, Jun 20
- Independence DayThu, Jul 9
- General José de San Martín Memorial DayMon, Aug 17
- Day of Respect for Cultural DiversityMon, Oct 12
- National Sovereignty DayMon, Nov 23
- Immaculate Conception DayTue, Dec 8
- Christmas DayFri, Dec 25
About these zones
Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.
Argentina Time is also known as ART. To call Argentina, dial +54.
Argentina Time is approximately 6,900 miles southwest of Greenwich Mean Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| GMT | ART | Day |
|---|---|---|
| 12:00 am | 8:00 pm | -1 day |
| 1:00 am | 9:00 pm | -1 day |
| 2:00 am | 10:00 pm | -1 day |
| 3:00 am | 11:00 pm | -1 day |
| 4:00 am | 12:00 am | Same day |
| 5:00 am | 1:00 am | Same day |
| 6:00 am | 2:00 am | Same day |
| 7:00 am | 3:00 am | Same day |
| 8:00 am | 4:00 am | Same day |
| 9:00 am | 5:00 am | Same day |
| 10:00 am | 6:00 am | Same day |
| 11:00 am | 7:00 am | Same day |
| 12:00 pm | 8:00 am | Same day |
| 1:00 pm | 9:00 am | Same day |
| 2:00 pm | 10:00 am | Same day |
| 3:00 pm | 11:00 am | Same day |
| 4:00 pm | 12:00 pm | Same day |
| 5:00 pm | 1:00 pm | Same day |
| 6:00 pm | 2:00 pm | Same day |
| 7:00 pm | 3:00 pm | Same day |
| 8:00 pm | 4:00 pm | Same day |
| 9:00 pm | 5:00 pm | Same day |
| 10:00 pm | 6:00 pm | Same day |
| 11:00 pm | 7:00 pm | Same day |
Daylight saving time
Greenwich Mean Time observes daylight saving time; Argentina Time 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
- 4:47 AM
- Sunset
- 9:13 PM
- Day length
- 16h 25m
- Sunrise
- 7:55 AM
- Sunset
- 5:51 PM
- Day length
- 9h 56m
Daylight overlap: 9h 18m — 11:55 AM–9:13 PM in Greenwich Mean Time (7:55 AM–5:13 PM in Argentina Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Greenwich Mean Time
Cities in Argentina 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 Argentina Time
- AEP
- EZE
Related conversions
Common conversions
- What is 9:00 am GMT in ART?
- 9:00 am GMT is 5:00 am ART.
- What is 12:00 pm GMT in ART?
- 12:00 pm GMT is 8:00 am ART.
- What is 12:30 pm GMT in ART?
- 12:30 pm GMT is 8:30 am ART.
- What is 2:00 pm GMT in ART?
- 2:00 pm GMT is 10:00 am ART.
- What is 5:00 pm GMT in ART?
- 5:00 pm GMT is 1:00 pm ART.
- What is 11:30 pm GMT in ART?
- 11:30 pm GMT is 7:30 pm ART.