Islamabad is 0.75 hours behind Kathmandu
Best overlap: 8:45 AM to 6:45 PM in Kathmandu is 8:00 AM to 6:00 PM in Islamabad.
If you set up a recurring sync, 8:45 AM to 6:45 PM in Kathmandu (8:00 AM to 6:00 PM in Islamabad) is the natural home for it. Despite the 0.75-hour difference, a 10-hour overlap keeps things simple and gives both teams breathing room.