If 60 seconds are in a minute, 60 minutes are in an hour, than what does 60 hours equal to?

Answer 1

in seconds?
60 hours x (60 min/hr) x (60 sec/min) = ? sec.
See how the units cancel and start with hr and end up sec.

Answer 2

Wait... What is the longest measurement of time?

Answer 3

From google: The word for the longest measurement of time is kalpa, Hindi for 432 billion years. A year is the time it takes for the earth to revolve around the sun once. A calendar year is 365 days.