I have a full time job and I'm only available in the evenings, can they see the time of day (3 pm-10 pm) which I checked on my profile? Or is that only for the weekdays? And are you thinking of adding this option the calender?

Rover does allow you to specify dates and times you are available, but it's been my experience that a lot of requests come in despite my availability being updated. I would suggest update it via the Rover Service Options and list it clearly on your profile, preferably towards the top.

Something like "I am only available for walks and drop in visits from 3pm to 10pm Wednesday through Sunday. However I am available for walks, drop in visits, and house sittings all day on Monday and Tuesday! Please send me a message to work out the best schedule for your pet's needs!"

I would recommend adding this information to your profile. On your calendar, you can also set how many visits you can do on any certain day, so perhaps set your drop-in visit limit to 2 and walk limit to 2, so that you can take evening and night time reservations. It also appears that your profile is incomplete. If you click on "Profile" in the top right hand corner of your page from the drop-down menu next to your photo, and then click on "Details" in the 3rd box that states "Sitter Profile," there is an option when you scroll down to "+Show Additional Profile Details (optional)" that I think would improve your profile. You could also reiterate the times that you are available in this area.