Honolulu is 6 hours behind Philadelphia
Best overlap: 2:00 PM to 6:00 PM in Philadelphia is 8:00 AM to 12:00 PM in Honolulu.
Target 2:00 PM to 6:00 PM in Philadelphia, which lands at 8:00 AM to 12:00 PM for the Honolulu side. A 4-hour overlap gives you a workable daily window; aim for earlier in it to avoid clipping the end of someone's day. Don't be caught out by clock changes — Philadelphia observes daylight saving and Honolulu doesn't, so the offset varies by an hour through the year.