How to find the difference in hours between two times in Ruby?

Question

Ruby on Rails

For example, there are two tenses:

old_date = Tue, 08 Sep 2015 14:52:18 MSK +03:00
new_date = Tue, 08 Sep 2015 16:52:18 MSK +03:00

Today's date, but the time (in hours) is different. So I want to determine the difference in hours from these dates. How to implement it?

Answer 1

old_date = Time.parse('Tue, 08 Sep 2015 14:52:18 MSK +03:00') %>
today_date = Time.parse('Tue, 08 Sep 2015 17:52:18 MSK +03:00') %>
((today_date - old_date).to_i / 60 ) / 60 # 3

Answer 2

Everything is the same as before How to find the difference in hours in two dates in RUBY ???
Finally read the documentation

Answer 3

yes, everything is also
only variables must be of class Time.