In complex positions, I spend ~20 minutes on my FIRST viewing of a position. I try never to move on the first day. I record the variations I analysed, make light comments on what I like (usually just a single note, such as !, !?, ?? Look at this) and then go back the next day and delve deeper. Some positions require hours of such work.
i guess thats why your rating is so high
lol...at blitz?
It takes me usually 1-3 minutes to make a move. I know many would disagree as I'm not using time wisely. I rely more on intuition than calculation.