Convert Irish Standard Time to Eastern Standard Time - Quick & Accurate
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Hover over any hour to see corresponding time in both zones
To schedule a meeting between IRST and EST:
Pro Tip: Schedule calls during the overlap window for optimal convenience for both time zones
| IRST Time | EST Time | Context |
|---|---|---|
| 12:00 AM | 08:00 PM | Midnight IRST |
| 01:00 AM | 09:00 PM | Late Night |
| 02:00 AM | 10:00 PM | Late Night |
| 03:00 AM | 11:00 PM | Late Night |
| 04:00 AM | 12:00 AM | Late Night |
| 05:00 AM | 01:00 AM | Late Night |
| 06:00 AM | 02:00 AM | Early Morning IRST |
| 07:00 AM | 03:00 AM | Night Time |
| 08:00 AM | 04:00 AM | Night Time |
| 09:00 AM | 05:00 AM | Work Starts IRST |
| 10:00 AM | 06:00 AM | Night Time |
| 11:00 AM | 07:00 AM | Night Time |
Dublin
Europe/Dublin
New York
America/New_York
EST (Eastern Standard Time) is 4 hours behind IRST (Irish Standard Time). This means when it's 12:00 PM in Dublin (IRST), it's 8:00 AM in New York (EST).
The best time to call from IRST to EST is during overlapping business hours. For IRST callers, schedule between 12:00 PM - 5:00 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 Eastern Standard Time (UTC-5 (EST) / UTC-4 (EDT)) may have different DST schedules.
IRST includes cities like Dublin. EST includes cities like New York. 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.