Recently, I've been working under the assumed notion that time runs in base 10.

However, I have not disregarded the existence of 11 or 12.


Example one:
I was thinking that if I have to get up at 11am tomorrow, and it's 2am now...then that is 7 hours of sleep.

Example two:
Our flight home from Seattle left at 12:15pm and thus we had to get to the airport 2 hours early...which I was convinced was 8:15am.


Does this ever happen to you? Am I perhaps just losing my mind?