What were you doing at the times?
1.Yesterday at:
A.m. 7.30 8.15 10.00
P.m. 1.30 7.00 10.00

I was sleeping yesterday at 7.30am.
I was washing my teeth yesterday at 8.15am.
I was listening to music yesterday at 10.00am.
I was eating yesterday at 1.30pm.
I was talking to my mother yesterday at 7.00pm.
I was watching a movie yesterday at. 10.00pm

I was dead asleep yesterday at halp past seven a.m.
at 8.15 am I was most probably dreaming 
at 10 am yesterday I woke up
at 1.30 pm I was shopping with my brother
at 7 pm i cooked a stir fry and at 10 pm I went to a club