Hi there
It doesn't really matter what time of day you take it although it was suggested to me to take it at night-time as it helps ease the side effects as you sleep through much of them...I have still suffered from a few

and

but thankfully only one day per month & I've not really suffered other side effects such as hot flushes, nausea etc. Although I do seem to have a bit of a bloated belly when I ovulate (CD14) & couple days after - but peppermint tea works wonders for to ease that!
I spose we're all different & some will suffer no side effects while others do...
There's a couple of threads (possibly few pages down) of success stories with Clomid

I ovulate naturally every month but am taking Clomid to "boost" things...on 2nd cycle & in the 2ww as I ovulated on Sunday.
Anyway, wish you loads of luck

Take care
Natasha