Dhaka is 4 hours ahead of Zurich
Best overlap: 8:00 AM to 2:00 PM in Zurich is 12:00 PM to 6:00 PM in Dhaka.
The sweet spot is 8:00 AM to 2:00 PM Zurich time, matching 12:00 PM to 6:00 PM in Dhaka. The 4-hour gap barely gets in the way — you've got 6 hours of overlap, so pick whatever time fits the agenda. Watch the DST gap — when Zurich changes its clocks and Dhaka stays the same, this window slides by an hour.