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TimezonePair
Home·Buenos Aires·Buenos Aires × Porto
Prime meridian·:: UTC·

Buenos Aires×Porto

Argentina · AR
Buenos Aires
—:—
America/Argentina/Buenos_Aires·
No DST
Portugal · PT
Porto
—:—
Europe/Lisbon·
DST active

Buenos Aires is 4 hours ahead of Porto. Scrub a time, meet in the overlap, ship the invite — before the kettle boils.

◊ at a glance

Three numbers. The ones that decide the meeting.

01
Difference
4h ahead
Buenos Aires vs Porto
02
Overlap
4h
Business hours 09:00 – 17:00
03
UTC offsets
GMT-3 / GMT+1
04
Flight
12h 4m
9,838 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
4h shared · 09:00 – 13:00 Buenos Aires
Buenos Aires
—:—
0
3
6
9
12
15
18
21
Porto
—:—
6
9
12
15
18
21
0
3
Scrub a meeting time14:00 Buenos Aires
Same moment in Porto18:00 Porto
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/buenos-aires/to/porto?t=14&a=A&d=2026-05-22&dur=60
14:00 Buenos Aires18:00 Porto
Full 24-hour reference
Buenos AiresPorto
00:00
04:00
01:00
05:00
02:00
06:00
03:00
07:00
04:00
08:00
05:00
09:00Porto only
06:00
10:00Porto only
07:00
11:00Porto only
08:00
12:00Porto only
09:00Both working
13:00
10:00Both working
14:00
11:00Both working
15:00
12:00Both working
16:00
13:00Buenos Aires only
17:00
14:00Buenos Aires only
18:00
15:00Buenos Aires only
19:00
16:00Buenos Aires only
20:00
17:00
21:00
18:00
22:00
19:00
23:00
20:00
00:00
21:00
01:00
22:00
02:00
23:00
03:00
◊ travel essentials

Crossing the border. Money, language, plugs.

Money changes hands at the border: Buenos Aires uses the ARS ($) and Porto uses the EUR (€). Language shifts too — Guaraní in Buenos Aires, Portuguese in Porto. Cars drive on the right in both, so rentals feel familiar.

Buenos Aires
Country
Argentina
Capital
Buenos Aires
Currency
Argentine peso (ARS · $)
Language
Guaraní, Spanish
Calling code
+54
Drives on
Right
Porto
Country
Portugal
Capital
Lisbon
Currency
euro (EUR · €)
Language
Portuguese
Calling code
+351
Drives on
Right
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Buenos Aires and Porto?

Buenos Aires is 4 hours ahead of Porto. Buenos Aires runs on GMT-3 and Porto on GMT+1. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.

When's the best time to schedule a meeting?

There are 4 hours where both cities are inside a 09:00–17:00 workday. Aim for the middle of that window so neither side is starting or closing out.

Does daylight saving time change the difference?

Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.

How far is Buenos Aires from Porto?

About 9,838 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 12h 4m, not counting airport time, winds, or routing around restricted airspace.

Can I send this meeting time as a calendar invite?

Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.

What currency do Buenos Aires and Porto use?

Buenos Aires uses the Argentine peso (ARS, $); Porto uses the euro (EUR, €). Check the live rate before transferring money or paying with a card abroad — most banks add a 1–3 % FX margin on top of the mid-market rate.

How do I call Buenos Aires from Porto?

Dial the international prefix used by your carrier (often 00), then +54, then the local number — drop any leading zero of the city or mobile code. For free calls, WhatsApp, Signal, and FaceTime work over Wi-Fi regardless of country code.

What language is spoken in Buenos Aires and Porto?

Buenos Aires primarily speaks Guaraní, Spanish; Porto speaks Portuguese. English is widely used in business contexts in major cities of both, but written contracts may need translation.

Do Buenos Aires and Porto drive on the same side of the road?

Yes — both drive on the right. Rental cars feel identical between the two.

◊ keep going

One pair down. 299 cities to go.

Every pair in 300 cities runs the same clocks, the same overlap, the same one-click invite. Pick another.

BUENOS AIRES · America/Argentina/Buenos_Aires
GMT-3 · -34.60°, -58.38°

PORTO · Europe/Lisbon
GMT+1 · 41.16°, -8.63°

4h shared · 4h ahead