40 minutes
A time
ten past ten!
It is: ten to eight
Ten minutes past six.
2:10
10:15
4:10
10 minutes past one
Ten minutes to two
one past ten
the past ten of think is
Ten past ten on a clock face has the hands balanced symmetrically on either side of the 12. Other times would also do this: quarter-past nine, for example, or twenty past eight. But ten ten looks best for display.