Grade 2 · Unit 5: Using units of measurement
Quarter past, half past, quarter to.

School starts, the bus comes, and lunch is served at certain times. We need to read clocks accurately. Today we learn quarter past and quarter to.
The minute hand points to 3. It has gone a quarter of the way round. It is quarter past 4, or 4:15.
The minute hand points to 9. There is a quarter of an hour left until 5. It is quarter to 5, or 4:45.
A digital clock shows hours, then minutes. :15 is quarter past, :30 is half past, :45 is quarter to. There are 60 minutes in an hour.