Time machine - 3.18 #sol21 Story Challenge

In the tradition of tooth fairies
stealthily swapping coins for canines,

unseen strangers sweeping snow, unasked,
from windshields and walks not their own,

samaritans picking up others' trash from the grass
and dropping it in the nearest receptacle,

yesterday (better late than never),
in a quiet moment just past dawn,
I set all six
of the school hall's portable clocks
ahead one hour.