It’s a quarter past 1.

13:15

It’s a quarter past 1.

Error: read digital clock as if it were an analogue clock

13:15

It’s a quarter past 1.

Error: read quarter as a number

12:45

It’s a quarter to 1.

Error: confuse ‘past’ and ‘to’

12:45

It’s a quarter to 1.

Error: confuse ‘past’ and ‘to’ and read quarter as number