Madrid is 4.75 hours behind Kathmandu
Best overlap: 12:45 PM to 6:45 PM in Kathmandu is 8:00 AM to 2:00 PM in Madrid.
The best time to meet is 12:45 PM to 6:45 PM in Kathmandu, which is 8:00 AM to 2:00 PM in Madrid. You won't be short on options — 6 hours of overlap leaves space for recurring syncs and ad-hoc calls alike. A quick caveat — Madrid's clocks move for daylight saving and Kathmandu's don't, so the times here are right for only part of the year.