Honolulu is 15 hours behind Islamabad
Best overlap: 8:00 AM to 9:00 AM in Islamabad is 5:00 PM to 6:00 PM in Honolulu.
The sweet spot is 8:00 AM to 9:00 AM Islamabad time, matching 5:00 PM to 6:00 PM in Honolulu. Because Honolulu is 15 hours behind Islamabad, the shared window is only about 1 hour. A fixed slot at 8:00 AM in Islamabad (5:00 PM in Honolulu) saves a lot of back-and-forth. The two cities aren't on the same date during this window — Honolulu runs the previous day from Islamabad.