Islamabad is 8 hours ahead of Montevideo
Best overlap: 8:00 AM to 10:00 AM in Montevideo is 4:00 PM to 6:00 PM in Islamabad.
8:00 AM to 10:00 AM in Montevideo is when Islamabad is also working, at 4:00 PM to 6:00 PM their time. There's roughly 2 hours to share, so keep agendas lean and meet at 8:00 AM in Montevideo (4:00 PM in Islamabad) to use every minute.