Reading: 9: 15.

Writing: 09: 15:00

First of all, what time is an hour after 8: 15? It involves the math problems in the second volume of the second grade of primary school! A class hour is about the conversion unit of time. To solve this problem, we must make the data clear.

1 day = 24 hours 1 hour = 60 minutes.

1 min = 60 seconds

Clockhand: turn 1 lap =24 hours, walk 1 grid = 12 minutes.

Minute hand: when turning 1 turning = 1, go 1 = 1.

Second hand: turn 1 turn = 1 minute, walk 1 grid = 1 second.