Delhi is 4.5 hours ahead of Prague
Best overlap: 8:30 AM to 1:30 PM in Prague is 1:00 PM to 6:00 PM in Delhi.
Both teams are at their desks between 8:30 AM to 1:30 PM in Prague and 1:00 PM to 6:00 PM in Delhi. The shared window is roughly 5 hours; treat its midpoint as the default and you'll keep both teams happy. A quick caveat — Prague's clocks move for daylight saving and Delhi's don't, so the times here are right for only part of the year.