i was going into a crazy thought of who exactly decided that there are 60 seconds in a minute, 60 minutes in an hour, and 24 hours a day. One may want to say "it takes 24 hours for the earth to rotate" but who decided to take that length of time, and divide it into 24 hours? mind-blowing.
It's basically all made up.
It's just this big ball of wibbly...wobbly...timey...wimey...
It doesn't exist.
Depends on if you mean the unit of measurement or time as in the sort of "substance" space-time.