Dublin is 5 hours ahead of Atlanta. When it's 9:00 AM in Atlanta, it's 2:00 PM in Dublin. Both cities observe DST, maintaining the 5-hour difference year-round.
Atlanta uses ET (Eastern Time) while Dublin uses GMT/IST (Irish Standard Time).
Optimal window: 8:00 AM - 12:00 PM Atlanta time (1:00 PM - 5:00 PM Dublin). Morning calls from Atlanta catch afternoon business hours in Dublin.
Delta and Aer Lingus operate direct flights between Atlanta and Dublin Airport, making it a major transatlantic tech corridor.