Philadelphia is 10.75 hours behind Kathmandu
There is no standard 8-to-6 overlap. Someone joins early or late.
Kathmandu and Philadelphia are too far apart in time (10.75 hours) for their workdays to line up during regular hours. For anything urgent, agree on an early-morning or late-night bridge hour in advance so nobody's caught off guard. Watch the DST gap — when Philadelphia changes its clocks and Kathmandu stays the same, this window slides by an hour.