A 24-hour ticket is valid for 24 hours starting from the time you first
hop on. For example, if you hop on at 3 p.m., your ticket is valid until 3 p.m.
the following day. The 1-day ticket is valid for the duration of one calendar
day, regardless of when you hop on. It is valid from the time service begins
until the time service ends on the day of use.