Best overlap: 3:00 PM to 6:00 PM in Hong Kong is 8:00 AM to 11:00 AM in Dublin.
The overlap falls at 3:00 PM to 6:00 PM in Hong Kong, or 8:00 AM to 11:00 AM if you're in Dublin. Because Dublin is 7 hours behind Hong Kong, the 3-hour overlap is your golden hours — 3:00 PM in Hong Kong maps to 8:00 AM in Dublin for a dependable slot. Heads up: because Dublin changes its clocks and Hong Kong doesn't, the difference moves by an hour twice a year. Confirm the overlap around the DST switch.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Hong Kong Asia/Hong Kong | ||||||||||||||||||||||||
Dublin Europe/Dublin |
London to New York is five hours apart, except for the five weeks a year when it isn't. Exact overlap windows for every US zone, the 2026 DST mismatch dates, and where to put the recurring sync. -
24/7 support sounds great until a P1 ticket falls into the gap between Manila signing off and Dublin signing on. Here is how to design a follow-the-sun support model that actually catches tickets at the boundary. -