how many hours until 6

It looks like your query is incomplete. Could you please specify the target date and time you want to calculate the hours until? For example, "How many hours until May 20, 2025, 3:00 PM EDT?" Once you provide the target date and time, I can calculate the exact number of hours remaining from the current date and time (Sunday, May 18, 2025, 5:39 AM EDT).