Prague is 4.5 hours behind Delhi
Best overlap: 1:00 PM to 6:00 PM in Delhi is 8:30 AM to 1:30 PM in Prague.
Both offices are open during 1:00 PM to 6:00 PM Delhi time, which is 8:30 AM to 1:30 PM in Prague. Prague is 4.5 hours behind Delhi. That leaves about 5 hours of common time — enough for a meeting or two, so use it deliberately. Heads up: because Prague changes its clocks and Delhi doesn't, the difference moves by an hour twice a year. Confirm the overlap around the DST switch.