Reykjavik is 5.5 hours behind Hyderabad
Best overlap: 2:00 PM to 6:00 PM in Hyderabad is 8:30 AM to 12:30 PM in Reykjavik.
2:00 PM to 6:00 PM in Hyderabad is when Reykjavik is also working, at 8:30 AM to 12:30 PM their time. You get roughly 4 hours of shared time, so aim for the middle of that window to keep the call comfortable for both teams.