It is hard to think about a project where you do not have
dates and timestamps involved in it. You may need to find the
day when a user has performed a particular action, or when an
event has occurred and many other cases. TimeDifference is a
really helpful gem that makes it really easy to calculate the
difference between two time periods. It allows you to
calculate the difference in years, months, weeks, days, hours,
minutes and seconds.