Best overlap: 1:00 PM to 6:00 PM in Reykjavik is 8:00 AM to 1:00 PM in Toronto.
Aim for 1:00 PM to 6:00 PM Reykjavik time — that's 8:00 AM to 1:00 PM over in Toronto. Toronto is 5 hours behind Reykjavik, leaving about 5 hours of daily overlap — enough for most meetings if you don't leave them too late in the day. Because Toronto and Reykjavik don't both observe daylight saving, plan to re-check the overlap around March and November.
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. -