How is 1 plus 1 plus 59 equals 2?

Answer 1

This appears to be a number trick or joke. The answer is that 1 hour, plus 1 minute, plus 59 minutes, will equal 2 hours.

Answer 2

because 1 plus 59 equals 60

because 1min plus 59 min equals 60 min equals 1 plus 1 equals 2 hours