Good Traffic at Night, But Not in Mornings

My website goes 8 pages back in mornings.

[showtime]

Hi,

My website gone back 10 search pages for every keyword after the last update. But something interesting. In the mornings I saw my website in 10th search page. But when I looked again late at night I saw the results before bourbon update.

Any Ideas what is the reason for that? I am making my search from Turkey.

After bourbon I love nights I receive good traffic at nights. In the mornings I begin to sleep and I wake up late and see my website on the top just before bourbon :)

Thanks