Slin use question.

[Dado5]

I started slin (Novolin R) yesterday at 2 ius and followed carb/sugar /protein intake protocol and felt great.
Now I know best time to take slin is right after workout but that will be the problem for me as I usually finish working out about 10PM or later and I am kind a afraid to take it that late then go to bed as In a week im going to raise it to 5 ius
I was wondering if I could take it on the morning or mid day and if that will have any effects, or does it have to be right after workouts?
Any suggestions?
Thanks