IRST to PET Time Converter

Convert Irish Standard Time (IRST) to Peru Time (PET). Both time zones are shown live below; current offset between them is 6 hours behind.

Dublin · Irish Standard Time
17:05:00
Wednesday, May 13, 2026
GMT+1 · UTC+01:00
Lima · Peru Time
11:05:00
Wednesday, May 13, 2026
GMT-5 · UTC-05:00

Convert a specific time

From: IRST (Dublin)
To: PET (Lima)
--:--

Daylight Saving status right now

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
PET (Peru Time)
Observes DST
No

Heads up: IRST observes DST while PET does not. The 6-hour difference shown above will shift by one hour when IRST starts or ends DST.

When can IRST and PET meet?

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01
02
03
04
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06
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09
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IRST
PET
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Dublin (IRST). Each row shows the local working-hours state in that zone for the same moment in time.
2 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 15:00–16:00 IRST (09:00–10:00 PET).

Hour-by-hour IRST to PET conversion table

IRST time (Dublin)PET time (Lima)Status
00:00 Wed18:00 TueOff-hours both sides
01:00 Wed19:00 TueOff-hours both sides
02:00 Wed20:00 TueOff-hours both sides
03:00 Wed21:00 TueOff-hours both sides
04:00 Wed22:00 TueOff-hours both sides
05:00 Wed23:00 TueOff-hours both sides
06:00 Wed00:00 WedOff-hours both sides
07:00 Wed01:00 WedOff-hours both sides
08:00 Wed02:00 WedOff-hours both sides
09:00 Wed03:00 WedIRST working
10:00 Wed04:00 WedIRST working
11:00 Wed05:00 WedIRST working
12:00 Wed06:00 WedIRST working
13:00 Wed07:00 WedIRST working
14:00 Wed08:00 WedIRST working
15:00 Wed09:00 WedBoth at work
16:00 Wed10:00 WedBoth at work
17:00 Wed11:00 WedPET working
18:00 Wed12:00 WedPET working
19:00 Wed13:00 WedPET working
20:00 Wed14:00 WedPET working
21:00 Wed15:00 WedPET working
22:00 Wed16:00 WedPET working
23:00 Wed17:00 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

Irish Standard Time (IRST)
IANA identifier
Europe/Dublin
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
Dublin
Peru Time (PET)
IANA identifier
America/Lima
Current UTC offset
UTC-05:00
Current abbreviation
GMT-5
Major cities in this zone
Lima

Related converters

PET to IRST (reverse)IRST to ESTIRST to PSTIRST to GMTIRST to UTCIRST to CETEST to PETPST to PETGMT to PETUTC to PETCET to PET
Looking for local time? See time in Dublin or time in Lima.

Frequently asked questions

What is the time difference between IRST and PET right now?+
PET (Peru Time) is currently 6 hours behind IRST (Irish Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does IRST or PET observe daylight saving time?+
IRST: observes daylight saving time. PET: does not observe daylight saving time.
When is the best time to schedule a meeting between IRST and PET?+
The strongest overlap is 15:00–16:00 IRST (09:00–10:00 PET), giving 2 hours when both sides are within standard 9am-5pm working hours.
What time is it in Lima when it is 12:00 noon in Dublin?+
When it is 12:00 Wed in Dublin (IRST), it is 06:00 Wed in Lima (PET).
Which IANA time zone identifiers are used for IRST and PET?+
IRST maps to "Europe/Dublin" in the IANA database. PET maps to "America/Lima". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Dublin ahead of or behind Lima?+
Whether Dublin (IRST) is ahead of or behind Lima (PET) depends on the current UTC offsets. Right now PET is 6 hours behind IRST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for IRST and PET?+
IRST is UTC+01:00 (GMT+1) and PET is UTC-05:00 (GMT-5). 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 IRST and PET?+
Yes. There are 2 hours of overlap during standard 9am-5pm working hours, with the strongest window at 15:00–16:00 IRST.