What is the ISO week number in Castletroy?

TimeDials shows the current ISO week number for Castletroy 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 Castletroy observe daylight saving time (DST)?

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

Time in Castletroy, Munster, Ireland — Local Time & Date

Live

--:--:--

Current local time in 🇮🇪 Castletroy, Munster, Ireland.

GMT/IST 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

06:56

18:13

Today

Mid-morning in Castletroy. 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	🇮🇪Ireland
State / Region	Munster
Timezone	GMT/IST
UTC Offset	UTC+00:00
DST	Yes — daylight saving time observed
Population	14,733
Elevation	19 m
Sunrise	06:56
Sunset	18:13
Coordinates	52.67°N, -8.55°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 Castletroy?

Standard business hours in Castletroy are 09:00–17:00 local time (GMT/IST). 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 Castletroy?

Castletroy is currently at UTC+00:00. The timezone identifier is GMT/IST. When it is noon in Castletroy, it is 12:00 UTC. You can embed a live Castletroy clock on your website.

What ISO week number is it in Castletroy?

It is currently ISO week 11 (odd week) in Castletroy. 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 Castletroy observe daylight saving time?

Yes, Castletroy 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.