This is kind of funny to me because I asked the same question and though I got a really nice response it wasn't at all pertaining to what I was trying to get at lol... totally cool though.
If steemit is anything like most other platforms then you may want to try these times for "maximum exposure":
I was going to explain it in my own words but this resource explains it a little 'nicer'
This might be helpful...
http://coschedule.com/blog/best-times-to-post-on-social-media