What is the ISO week number in Rio Maior?

TimeDials shows the current ISO week number for Rio Maior in real time. ISO week numbers follow the ISO 8601 standard, where week 1 is the week containing the first Thursday of the year.

Does Rio Maior observe daylight saving time (DST)?

Yes, Rio Maior observes daylight saving time. The next clock change is on 2026-03-29 (clocks move forward to GMT+1).

Time in Rio Maior, Santarém, Portugal — Local Time & Date

Live

--:--:--

Current local time in 🇵🇹 Rio Maior, Santarém, Portugal.

WET/WEST UTC+00:00

Relative to You

Detecting your timezone…

Relative to UTC

On UTC

Noon here = 12:00 UTC

ISO Week

11 Odd Week

Sun

06:49

18:22

Today

Mid-morning in Rio Maior. Offices are busy, meetings are underway. The current offset is on UTC.

Daylight Saving Time

Last Clock Change

2025-10-26

Clocks moved back to GMT+0

Next Clock Change

2026-03-29

Clocks will move forward to GMT+1

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Quick Facts

Country	🇵🇹Portugal
State / Region	Santarém
Timezone	WET/WEST
UTC Offset	UTC+00:00
DST	Yes — daylight saving time observed
Population	12,064
Elevation	82 m
Sunrise	06:49
Sunset	18:22
Coordinates	39.34°N, -8.94°E

Map

Map data © OpenStreetMap contributors

Time Difference to Major Cities

City	Difference	Local Time
New York	-4h	--:--
Los Angeles	-7h	--:--
London	+0h	--:--
Paris	+1h	--:--
Dubai	+4h	--:--
Mumbai	+5h 30m	--:--
Singapore	+8h	--:--
Tokyo	+9h	--:--
Sydney	+11h	--:--
Sao Paulo	-3h	--:--
Cairo	+2h	--:--
Shanghai	+8h	--:--

Frequently Asked Questions

What are the business hours in Rio Maior?

Standard business hours in Rio Maior are 09:00–17:00 local time (WET/WEST). Check the live clock above to see the current local time. Use our Time Zone Planner to find the best meeting time across cities.

What is the UTC offset for Rio Maior?

Rio Maior is currently at UTC+00:00. The timezone identifier is WET/WEST. When it is noon in Rio Maior, it is 12:00 UTC. You can embed a live Rio Maior clock on your website.

What ISO week number is it in Rio Maior?

It is currently ISO week 11 (odd week) in Rio Maior. ISO week numbers follow the ISO 8601 standard, where week 1 is the week containing the first Thursday of the year. Learn more about ISO week numbers.

Does Rio Maior observe daylight saving time?

Yes, Rio Maior observes daylight saving time (DST). The most recent change was on 2025-10-26, when clocks moved back to GMT+0. The next change is on 2026-03-29, when clocks will move forward to GMT+1.