Islamabad is 4 hours ahead of Oslo
Best overlap: 8:00 AM to 2:00 PM in Oslo is 12:00 PM to 6:00 PM in Islamabad.
Book within 8:00 AM to 2:00 PM Oslo time (12:00 PM to 6:00 PM in Islamabad) and both teams will be at work. That's a roomy 6 hours of common time each day, so finding a slot that suits everyone is rarely a problem. Seasonal note: Oslo uses daylight saving and Islamabad doesn't, so double-check the times in your own months — they can move by an hour.