How do I get the number of seconds between two DateTimes in Ruby on Rails

Question

I\'ve got code that does time tracking for employees. It creates a counter to show the employee how long they have been clocked in for.

This is the current code:

Answer 1

why not use the built in "sec" . Here is an example :

t1 = Time.now.sec 

elapsed_t = Time.now.sec - t1

puts "it took me :  #{elapsed_t} seconds to do something that is useful \n"