15 hrs per week, how many days?

[Glass half full]

My dd does 2 days one week and 3 days the next at kindy. So Monday, Thursday and every second Wednesday 8:45-2:50 on all days.

ETA some of our friends at different schools to us do 2 and a half days each week rather the the 2 days one week, 3 the next. I much prefer the set up we have as the 'half' day only works out to be about 2 hours and sounds like a pita to me.