Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between gmt and art?
Greenwich Mean Time (gmt) is UTC+1 and Argentina Time (art) is UTC-3. The difference between them is 4 hours.
Where is gmt used?
Greenwich Mean Time (gmt) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London.
Where is art used?
Argentina Time (art) is used in Argentina and surrounding regions. The IANA timezone identifier is America/Argentina/Buenos_Aires.
How do I convert gmt to art?
Use the interactive converter above. Drag the time slider to any gmt time and the art equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
GMT (London) is 4 hours ahead of ART (Buenos Aires). At noon in GMT (London), your contact in ART (Buenos Aires) sees 08:00.
GMT (London) runs on Europe/London; ART (Buenos Aires) runs on America/Argentina/Buenos_Aires. Together they are 4 hours apart.
Mutual working hours
GMT (London) and ART (Buenos Aires) share 4 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.
00:0006:0012:0018:0024:00
GMT (London)
ART (Buenos Aires)
Overlap (4h)
Best call times between these locations
There is a 4-hour daily window where both locations are in business hours. The 3 best slots are listed below.
13:00 London / 09:00 Buenos Aires✓ Both working
14:00 London / 10:00 Buenos Aires✓ Both working
15:00 London / 11:00 Buenos Aires✓ Both working
Working hours defined as 09:00–17:00 local time for each location.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
GMT (London)6 holidays
Jul 13Battle of the Boyne
Aug 3Summer Bank Holiday
Aug 31Summer Bank Holiday
Nov 30Saint Andrew's Day
Dec 25Christmas Day
ART (Buenos Aires)6 holidays
Jul 9Independence Day
Aug 17General José de San Martín Memorial Day
Oct 12Day of Respect for Cultural Diversity
Nov 23National Sovereignty Day
Dec 8Immaculate Conception Day
Scheduling between GMT (London) and ART (Buenos Aires)
GMT (London) (United Kingdom) and ART (Buenos Aires) (Argentina) are 4 hours apart. With a 4-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.
💡 Scheduling tips for these locations
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If you are in GMT (London), aim for 13:00–14:00, which corresponds to 09:00–10:00 in ART (Buenos Aires) — both teams are within working hours.
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If you are in GMT (London), aim for 14:00–15:00, which corresponds to 10:00–11:00 in ART (Buenos Aires) — both teams are within working hours.
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If you are in GMT (London), aim for 15:00–16:00, which corresponds to 11:00–12:00 in ART (Buenos Aires) — both teams are within working hours.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am GMT (London)".
