Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between brt and dublin?
Brasilia Time (brt) is UTC-3 and DUBLIN (Dublin) (dublin) is UTC+1. The difference between them is 4 hours.
Where is brt used?
Brasilia Time (brt) is used in Brazil and surrounding regions. The IANA timezone identifier is America/Sao_Paulo.
Where is dublin used?
DUBLIN (Dublin) (dublin) is used in Ireland and surrounding regions. The IANA timezone identifier is Europe/Dublin.
How do I convert brt to dublin?
Use the interactive converter above. Drag the time slider to any brt time and the dublin equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
BRT (São Paulo) is 4 hours behind Dublin. Midday in BRT (São Paulo) lines up with 16:00 in Dublin.
BRT (São Paulo) observes America/Sao_Paulo and Dublin observes Europe/Dublin — a 4 hours gap between them.
Working hours overlap
There is a 4-hour window each day where both BRT (São Paulo) and Dublin are within standard business hours (09:00–17:00).
00:0006:0012:0018:0024:00
BRT (São Paulo)
Dublin
Overlap (4h)
Optimal meeting slots
BRT (São Paulo) and Dublin share 4 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.
09:00 São Paulo / 13:00 Dublin✓ Both working
10:00 São Paulo / 14:00 Dublin✓ Both working
11:00 São Paulo / 15:00 Dublin✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
BRT (São Paulo)7 holidays
Jul 9Constitutionalist Revolution of 1932SOON
Sep 7Independence Day
Oct 12Our Lady of Aparecida
Nov 2All Souls' Day
Nov 15Republic Proclamation Day
Dublin4 holidays
Aug 3August Holiday
Oct 26October Holiday
Dec 25Christmas Day
Dec 26St. Stephen's Day
How to work with BRT (São Paulo) and Dublin time zones
Coordinating between BRT (São Paulo) (Brazil) and Dublin (Ireland) means working around a 4-hour time difference. The 4-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.
💡 How to schedule across these time zones
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Schedule at 09:00–10:00 (BRT (São Paulo)) for a 13:00–14:00 slot in Dublin — the sweet spot where both teams are working.
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Schedule at 10:00–11:00 (BRT (São Paulo)) for a 14:00–15:00 slot in Dublin — the sweet spot where both teams are working.
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Schedule at 11:00–12:00 (BRT (São Paulo)) for a 15:00–16:00 slot in Dublin — the sweet spot where both teams are working.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any BRT (São Paulo) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
