(and) about time (too)(and) not before time British spoken language informal
Here comes my friends, and it's about time too - I've been waiting for them 30 minutes.
More and more people are wearing face masks when the COVID-19 cases are growing fast, and not before time!
Godfrey Daniel means God Damnit or God Damn it.
Don't know anything about something
(and) about time (too) or (and) not before time (too) is an expression, therefore, it is often used in spoken language and stands at the end of a sentence.
The school finally installed the projector for each class, and not before time, too!
Connor's finally quitting smoking, and it's about time too - the doctor diagnosed he's got lung cancer.