How do I get elapsed time in milliseconds in Ruby?

Question

If I have a Time object got from :

Time.now

and later I instantiate another object with that same line, how can I see how many

Answer 1

Try subtracting the first Time.now from the second. Like so:

a = Time.now
sleep(3)
puts Time.now - a # about 3.0

This gives you a floating-point number of the seconds between the two times (and with that, the milliseconds).