What's the difference between a birthday and ten minutes?

Birthdays are arranged according to the year, month, day and time. The lunar calendar starts at 23 o'clock every day, and it is midnight when it arrives. 23: 00 to 1: 00 belong to the same hour, and every two hours is an hour. Twelve hours a day, etc. There is no problem that there is a difference of more than one hour at the same time. But when this time comes out, the difference of ten minutes is different. There are two different words in the eight characters. So, it depends on when the ten-minute difference is.