Budapest is 4 hours behind Islamabad
Best overlap: 12:00 PM to 6:00 PM in Islamabad is 8:00 AM to 2:00 PM in Budapest.
The overlap falls at 12:00 PM to 6:00 PM in Islamabad, or 8:00 AM to 2:00 PM if you're in Budapest. The 4-hour gap barely gets in the way — you've got 6 hours of overlap, so pick whatever time fits the agenda. The window above shifts seasonally: Budapest keeps daylight saving while Islamabad ignores it.