Convert Irish Standard Time to Coordinated Universal Time - Quick & Accurate
Updates live every second
Hover over any hour to see corresponding time in both zones
To schedule a meeting between IRST and UTC:
Pro Tip: Schedule calls during the overlap window for optimal convenience for both time zones
| IRST Time | UTC Time | Context |
|---|---|---|
| 12:00 AM | 12:00 AM | Midnight IRST |
| 01:00 AM | 01:00 AM | Late Night |
| 02:00 AM | 02:00 AM | Late Night |
| 03:00 AM | 03:00 AM | Late Night |
| 04:00 AM | 04:00 AM | Late Night |
| 05:00 AM | 05:00 AM | Late Night |
| 06:00 AM | 06:00 AM | Early Morning IRST |
| 07:00 AM | 07:00 AM | Night Time |
| 08:00 AM | 08:00 AM | Night Time |
| 09:00 AM | 09:00 AM | Work Starts IRST |
| 10:00 AM | 10:00 AM | Night Time |
| 11:00 AM | 11:00 AM | Night Time |
Dublin
Europe/Dublin
UTC
UTC
UTC (Coordinated Universal Time) is 0 hours ahead of IRST (Irish Standard Time). This means when it's 12:00 PM in Dublin (IRST), it's 12:00 PM in UTC (UTC).
The best time to call from IRST to UTC is during overlapping business hours. For IRST callers, schedule between 9:00 AM - 12:00 PM IRST to ensure both parties are within standard business hours.
The time difference may change during daylight saving transitions if one region observes DST while the other doesn't. Irish Standard Time (UTC+0 (IST) / UTC+1 (Irish Summer)) and Coordinated Universal Time (UTC+0) may have different DST schedules.
IRST includes cities like Dublin. UTC includes cities like UTC. Both time zones cover important business and cultural centers.
In 2025, DST in North America starts on March 9 at 2:00 AM and ends on November 2 at 2:00 AM. Other regions may have different DST schedules or not observe DST at all.