Difference between 24:00 and 00:00?

Question

What is the difference between 24:00 clock and 00:00 clock. IMO 24:00 clock is the day before and 00:00 clock is the beginning of the new day. But I\'m not really convinced

Answer 1

The concept of 00:00 / 24:00 is a familiar one to me working in China - in my situation I have dealt with it in terms the coverage period of insurance policies:

An annual policy with an effective date of 01/OCT/2013 24:00 would give coverage from 1st October 2013 to 30th September 2014.

An annual policy with an effective date of 01/OCT/2013 00:00 would give coverage from 2nd October 2013 to 1st October 2014.