4:15 a quarter past four /four fifteen 4:45 a quarter to four /four forty-five 4:12 twelve past four/four twelve 4:25 twenty-five past four/four twenty-five 其实很简单,分钟没超过半的用"past",多少分钟,就是多少数字,且小时是几点就几点,如6:05five past six；另一种情况就是超半的,用“to”,分钟按几点缺少几分钟来算,如,5：55,five to six.
