To realize the value of ONE YEAR :
Ask a student who has failed his exam.
To realize the value of ONE MONTH
Ask a mother who has given birth to a premature baby.
To realize the value of ONE WEEK
Ask an editor of a weekly.
To realize the value of ONE DAY
Ask a daily wage laborer.
To realize the value of ONE MINUTE
Ask a person who has missed the train.
To realize the value of ONE SECOND
Ask a person who has survived an accident.
To realize the value of ONE MILLISECOND
Ask the person who has won a silver medal in Olympics.
To realize the value of ONE NANOSECOND
Ask a Hardware Engineer!
If you still don't realize the value of time
You must be a Software Engineer