Dublin is 7 hours ahead of Phoenix during standard time. Phoenix uses Mountain Standard Time (MST, UTC-7) while Dublin uses Greenwich Mean Time (GMT, UTC+0). When it's 12:00 PM in Phoenix, it's 7:00 PM in Dublin.
Arizona does not observe daylight saving time. During Dublin's summer time (IST), the difference increases to 8 hours as Dublin moves to UTC+1 while Phoenix stays at UTC-7.
Best calling time: 7:00 AM - 10:00 AM Phoenix time. This corresponds to 2:00 PM - 5:00 PM in Dublin (or 3:00 PM - 6:00 PM during IST).
Dublin is a major tech hub, home to European headquarters for many US companies. Phoenix's growing tech scene has connections with Ireland's Silicon Docks. The significant time difference requires early morning calls from Arizona.