32.
What does the utc method do for a Time object in Ruby?

34.
How do you find the number of seconds between two DateTime objects in Ruby?

35.
What does the at_beginning_of_day method do for a DateTime object in Ruby?

36.
How do you find the number of milliseconds between two Time objects in Ruby?

37.
What is the purpose of the beginning_of_week method for a Date object in Ruby?

38.
How do you find the number of hours between two DateTime objects in Ruby?

39.
What does the advance method do for a Date object in Ruby?

40.
What is the purpose of the seconds_since_midnight method for a Time object in Ruby?