Seattle is typically 8 hours behind Dublin. When it's 4:00 PM in Dublin, it's 8:00 AM in Seattle. Both cities observe daylight saving time, though the transition dates differ slightly.
During the brief periods when the US and Ireland change clocks on different weekends (usually in March and November), the difference can temporarily be 7 or 9 hours. For most of the year, it's a consistent 8-hour difference.
Optimal meeting window: 7:00 AM - 10:00 AM Seattle time (3:00 PM - 6:00 PM Dublin). This catches afternoon business hours in Dublin while being morning in Seattle.
Seattle tech companies have strong ties to Dublin's tech hub, with many US companies having their European headquarters in Ireland.