Given a start time and an end time, generate all meeting check-in slots at 5-minute intervals after start up to and including end. The start time itself is excluded; end is included if it falls exactly on a 5-minute mark after start. Slots are at start + 5, start + 10, start + 15, etc.

Times are formatted as "Day HH:MM AM/PM" where Day is a three-letter weekday abbreviation (Mon, Tue, Wed, Thu, Fri, Sat, Sun). The week is cyclic, so time can wrap from Sun back to Mon. ...