UTC to IRST Time Converter

Convert Coordinated Universal Time (UTC) to Irish Standard Time (IRST). Both time zones are shown live below; current offset between them is 1 hour ahead.

UTC · Coordinated Universal Time
06:00:44
Tuesday, May 12, 2026
UTC · UTC+00:00
Dublin · Irish Standard Time
07:00:44
Tuesday, May 12, 2026
GMT+1 · UTC+01:00

Convert a specific time

From: UTC (UTC)
To: IRST (Dublin)
--:--

Daylight Saving status right now

UTC (Coordinated Universal Time)
Observes DST
No
IRST (Irish Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-10-25
Offset shift
UTC+01:00 → UTC+00:00

Heads up: IRST observes DST while UTC does not. The 1-hour difference shown above will shift by one hour when IRST starts or ends DST.

When can UTC and IRST meet?

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01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
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18
19
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23
UTC
IRST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in UTC (UTC). Each row shows the local working-hours state in that zone for the same moment in time.
7 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–15:00 UTC (10:00–16:00 IRST).

Hour-by-hour UTC to IRST conversion table

UTC time (UTC)IRST time (Dublin)Status
00:00 Tue01:00 TueOff-hours both sides
01:00 Tue02:00 TueOff-hours both sides
02:00 Tue03:00 TueOff-hours both sides
03:00 Tue04:00 TueOff-hours both sides
04:00 Tue05:00 TueOff-hours both sides
05:00 Tue06:00 TueOff-hours both sides
06:00 Tue07:00 TueOff-hours both sides
07:00 Tue08:00 TueOff-hours both sides
08:00 Tue09:00 TueIRST working
09:00 Tue10:00 TueBoth at work
10:00 Tue11:00 TueBoth at work
11:00 Tue12:00 TueBoth at work
12:00 Tue13:00 TueBoth at work
13:00 Tue14:00 TueBoth at work
14:00 Tue15:00 TueBoth at work
15:00 Tue16:00 TueBoth at work
16:00 Tue17:00 TueUTC working
17:00 Tue18:00 TueOff-hours both sides
18:00 Tue19:00 TueOff-hours both sides
19:00 Tue20:00 TueOff-hours both sides
20:00 Tue21:00 TueOff-hours both sides
21:00 Tue22:00 TueOff-hours both sides
22:00 Tue23:00 TueOff-hours both sides
23:00 Tue00:00 WedOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Coordinated Universal Time (UTC)
IANA identifier
UTC
Current UTC offset
UTC+00:00
Current abbreviation
UTC
Major cities in this zone
UTC
Irish Standard Time (IRST)
IANA identifier
Europe/Dublin
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
Dublin

Related converters

IRST to UTC (reverse)UTC to ESTUTC to PSTUTC to GMTUTC to CETUTC to ISTEST to IRSTPST to IRSTGMT to IRSTCET to IRSTIST to IRST
Looking for local time? See time in UTC or time in Dublin.

Frequently asked questions

What is the time difference between UTC and IRST right now?+
IRST (Irish Standard Time) is currently 1 hour ahead UTC (Coordinated Universal Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does UTC or IRST observe daylight saving time?+
UTC: does not observe daylight saving time. IRST: observes daylight saving time.
When is the best time to schedule a meeting between UTC and IRST?+
The strongest overlap is 09:00–15:00 UTC (10:00–16:00 IRST), giving 7 hours when both sides are within standard 9am-5pm working hours.
What time is it in Dublin when it is 12:00 noon in UTC?+
When it is 12:00 Tue in UTC (UTC), it is 13:00 Tue in Dublin (IRST).
Which IANA time zone identifiers are used for UTC and IRST?+
UTC maps to "UTC" in the IANA database. IRST maps to "Europe/Dublin". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is UTC ahead of or behind Dublin?+
Whether UTC (UTC) is ahead of or behind Dublin (IRST) depends on the current UTC offsets. Right now IRST is 1 hour ahead UTC. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for UTC and IRST?+
UTC is UTC+00:00 (UTC) and IRST is UTC+01:00 (GMT+1). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both UTC and IRST?+
Yes. There are 7 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–15:00 UTC.