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Time difference between Buenos Aires and Lisbon

Lisbon is 4 hours ahead of Buenos Aires

Buenos Aires, Argentina is UTC−3 · Lisbon, Portugal is UTC — on standard time

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Buenos Aires does not change its clocks and Lisbon goes forward on the last Sunday in March and back on the last Sunday in October.

Buenos Aires / Lisbon clocksDifferenceHow long
standard / summer4 hours aheadabout 30 weeks
standard / standard3 hours aheadabout 22 weeks

Buenos Aires stays put all year while Lisbon moves, so the gap changes twice a year from Lisbon's side alone. A recurring meeting set in Buenos Aires's calendar will drift by an hour without anyone touching it.

When they can both be at their desks

Nine-to-five in both cities overlaps for 4 hours — 9:00 AM to 1:00 PM in Buenos Aires, the same moment as 1:00 PM to 5:00 PM in Lisbon.

Buenos Aires to Lisbon, hour by hour

Buenos AiresLisbon
12:00 AM4:00 AM
1:00 AM5:00 AM
2:00 AM6:00 AM
3:00 AM7:00 AM
4:00 AM8:00 AM
5:00 AM9:00 AM
6:00 AM10:00 AM
7:00 AM11:00 AM
8:00 AM12:00 PM
9:00 AM1:00 PM
10:00 AM2:00 PM
11:00 AM3:00 PM
12:00 PM4:00 PM
1:00 PM5:00 PM
2:00 PM6:00 PM
3:00 PM7:00 PM
4:00 PM8:00 PM
5:00 PM9:00 PM
6:00 PM10:00 PM
7:00 PM11:00 PM
8:00 PM12:00 AM (next day)
9:00 PM1:00 AM (next day)
10:00 PM2:00 AM (next day)
11:00 PM3:00 AM (next day)

On the usual gap of 4 hours.

Frequently asked questions

What is the time difference between Buenos Aires and Lisbon?

Lisbon is 4 hours ahead of Buenos Aires for most of the year. It is not the same all year — there is one other gap, because Buenos Aires does not change its clocks and Lisbon goes forward on the last Sunday in March and back on the last Sunday in October.

Is Lisbon ahead of Buenos Aires?

Yes — Lisbon is 4 hours ahead. Buenos Aires is UTC−3 and Lisbon is UTC on standard time.

What time is 9 AM in Buenos Aires in Lisbon?

1:00 PM, on the usual gap.

When can Buenos Aires and Lisbon meet?

Standard nine-to-five hours overlap for 4 hours: 9:00 AM–1:00 PM in Buenos Aires, which is 1:00 PM–5:00 PM in Lisbon.

Other pairs

Every Buenos Aires pair · Every Lisbon pair · All city pairs · Time zones by abbreviation