Reykjavik is 2 hours behind Bucharest
Best overlap: 10:00 AM to 6:00 PM in Bucharest is 8:00 AM to 4:00 PM in Reykjavik.
Target 10:00 AM to 6:00 PM in Bucharest, which lands at 8:00 AM to 4:00 PM for the Reykjavik side. Reykjavik is 2 hours behind Bucharest, but you'd hardly notice — 8 hours of shared hours makes this feel like working in neighbouring time zones. Seasonal note: Bucharest uses daylight saving and Reykjavik doesn't, so double-check the times in your own months — they can move by an hour.