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Time difference between Lisbon and Buenos Aires

Buenos Aires is 4 hours behind Lisbon

Lisbon, Portugal is UTC · Buenos Aires, Argentina is UTC−3 — 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 Lisbon goes forward on the last Sunday in March and back on the last Sunday in October and Buenos Aires does not change its clocks.

Lisbon / Buenos Aires clocksDifferenceHow long
summer / standard4 hours behindabout 30 weeks
standard / standard3 hours behindabout 22 weeks

Buenos Aires stays put all year while Lisbon moves, so a meeting fixed in Buenos Aires's calendar shifts by an hour twice a year at Lisbon's end.

When they can both be at their desks

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

Lisbon to Buenos Aires, hour by hour

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

On the usual gap of 4 hours.

Frequently asked questions

What is the time difference between Lisbon and Buenos Aires?

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

Is Buenos Aires ahead of Lisbon?

No — Buenos Aires is 4 hours behind. Lisbon is UTC and Buenos Aires is UTC−3 on standard time.

What time is 9 AM in Lisbon in Buenos Aires?

5:00 AM, on the usual gap.

When can Lisbon and Buenos Aires meet?

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

Other pairs

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