What is 45 minutes before 3:00

In an hour, there are 60 minutes. Take note of the phrase, "45 minutes before." Before 3:00, that is 2:00. So we are sure with 2:00 already. What we need to get is the remaining minutes. 60 minutes minus 45 minutes gets 15 minutes. So add 15 minutes to 2:00. The final answer would be 2:15.