What is ART in WET?

Western European Time is 4 hours ahead

Argentina Time is on UTC−3:00 and Western European Time is on UTC+1:00 right now. Western European Time is on daylight saving, so its clocks read WEST. The gap changes during the year — see below.

Time in Buenos Aires: 9:04:08 AM
Time in Lisbon: 1:04:08 PM
Difference: +4 h
Next clock change: October 25, 2026

Convert a time

ART — Argentina Time

WEST — Western European Time

1:00 pm

WEST, Fri

When the difference changes

Argentina Time and Western European Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:

Now – October 24, 2026Western European Time is 4 hours ahead
October 24, 2026 – March 27, 2027Western European Time is 3 hours ahead
March 27, 2027 – onwardsWestern European Time is 4 hours ahead

Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.

Daylight saving

Argentina Time

No clock changes

Argentina Time stays on ART all year, so its offset from UTC never moves.

Western European Time

Sunday, October 25, 2026

Clocks go back one hour — 2:00 am becomes 1:00 am local time, and the zone is on WET after that.

ART to WET conversion table

Every hour of Friday, September 25, 2026, converted from Argentina Time to Western European Time. 4 of the 24 hours fall on a different calendar day in Lisbon, which is marked.

12:00 am ART: 4:00 am WEST
1:00 am ART: 5:00 am WEST
2:00 am ART: 6:00 am WEST
3:00 am ART: 7:00 am WEST
4:00 am ART: 8:00 am WEST
5:00 am ART: 9:00 am WEST
6:00 am ART: 10:00 am WEST
7:00 am ART: 11:00 am WEST
8:00 am ART: 12:00 pm WEST
9:00 am ART: 1:00 pm WEST
10:00 am ART: 2:00 pm WEST
11:00 am ART: 3:00 pm WEST

12:00 pm ART: 4:00 pm WEST
1:00 pm ART: 5:00 pm WEST
2:00 pm ART: 6:00 pm WEST
3:00 pm ART: 7:00 pm WEST
4:00 pm ART: 8:00 pm WEST
5:00 pm ART: 9:00 pm WEST
6:00 pm ART: 10:00 pm WEST
7:00 pm ART: 11:00 pm WEST
8:00 pm ART: 12:00 am WEST+1 day
9:00 pm ART: 1:00 am WEST+1 day
10:00 pm ART: 2:00 am WEST+1 day
11:00 pm ART: 3:00 am WEST+1 day

Scheduling between the two

Working hours overlap from 9:00 am to 2:00 pm ART, which is 1:00 pm to 6:00 pm WEST. Anything inside that window falls in the normal working day at both ends.

Western European Time (WEST) is used in Portugal, Ireland and the Canary Islands