What time is it in London if its 5am in ny?

9 am the same day

Most of the time, England is 5 hrs. ahead of New York, so

• 5 AM EST = 10 AM GMT and
• 5 AM EDT = 10 AM BST

(Because the U. S. and Europe have different start and end dates for Daylight Saving Time/ Summer Time, England is 4 hrs. ahead of New York for an average of 17 days in March and for 7 days between October and November.)