When you feel that you have delayed doing something but you should have done it before. You can use the expression it’s time.
Rules:
1.It is time can be followed by an infinitive
•It is time to go home now.
•It is time for her to buy a car.
2.Followed by past tense with present meaning.
•It is time you changed your habit.
•It is time you did the work.
•It is time you realized your mistake and repented.