Just want to share a thought. I have been seeing people do this here and i have noticed myself doing this and after thinking about it for a bit its seems like a terrible question. It says hey whenever you are free i'll make the time. Whenever you ask a girl out or to meet up you should give them a specific day. Lets them know you have things going on.

edit: one question what do you guys think about the i can't this day but what about the next day? (I have nothing important going on this week so i happily rescheduled to the next day)