MarketCalendars.com

B3 vs ATHEX trading hours

B3 and ATHEX next both trade from 13:00 to 15:20 UTC on Tuesday 27 October 2026 (2h 20m)

Markets

São Paulo · Stocks

OpenCloses in 3m 21s

Athens · Stocks

ClosedOpens in 11h 3m

On one 24-hour axis

NowToday

UTC

00:0003:0006:0009:0012:0015:0018:0021:00

Both open

TradingBreakPre-market and after-hoursOverlapNow

Upcoming overlaps

Overlap	Length
Tue 27 Oct, 13:00–15:20 UTC	2h 20m
Thu 29 Oct, 13:00–15:20 UTC	2h 20m
Fri 30 Oct, 13:00–15:20 UTC	2h 20m

Upcoming B3 holidays

Mon 2 Nov 2026All Souls' DayMarket holiday
Fri 20 Nov 2026Black Consciousness DayMarket holiday
Thu 24 Dec 2026Christmas EveMarket holiday
Fri 25 Dec 2026Christmas DayMarket holiday
Thu 31 Dec 2026New Year's DayMarket holiday

Upcoming ATHEX holidays

Wed 28 Oct 2026Ochi DayMarket holiday
Thu 24 Dec 2026Christmas EveMarket holiday
Fri 25 Dec 2026Christmas DayMarket holiday
Fri 1 Jan 2027New Year's DayMarket holiday
Wed 6 Jan 2027EpiphanyMarket holiday

Frequently asked questions

When do B3 and ATHEX trading hours overlap?

B3 and ATHEX next both trade from 13:00 to 15:20 UTC on Tuesday 27 October 2026 (2h 20m).

What time does B3 open compared to ATHEX?

B3 trades 10:00 to 18:00 local time (America/Sao_Paulo); ATHEX trades 10:00 to 17:20 local time (Europe/Athens).

Popular comparisons

See also B3 hours and ATHEX hours