If you live in honolulu and it is 9 00 pm is it a good time to call your grandfather in new york why or why not?

No, it is not a good time to call your grandfather in New York if it is 9:00 PM in Honolulu. New York is 5 hours ahead of Honolulu, so it would be 2:00 AM there. Calling at that hour may disturb him since it is very late.