There is a challenge to the theory of time, called The truth about time.
Welcome to the internet.
From GmT+12:00 to GmT-12:00, Plus the 24 hr day...
... Meaning there is technically 48hrs in any one day of the calender.
Caveats: GmT is sometimes called UTC.
Something few people know.
Let alone can understand.
Welcome to the internet.
Oh damn! I forgot the world is still flat... :P
Shhhh.... Be wery, wery quiet.
....I'm Hunting Paraphilic Disorders. :P