8:45 is also called a quarter to 9 since it is one-quarter hour before nine o'clock.
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A quarter of ten, as it relates to time, is 9:45 A quarter of ten, as it relates to algebra, is 2.5
9:45
9:15When telling time, "one quarter" means 15 minutes. The modifiers "to", "till", and "of" means before the hour, while "after" and "past" mean after the hour. Thus "quarter after 9" means "15 minutes after 9 o'clock".
What is quarter after 9 o'clock
Oh, dude, quarter past 9? That's like 9:15. You know, when the big hand is on the 3 and the little hand is on the 9? Yeah, that's when you're officially 15 minutes into not caring about being on time.