I am making a fullCalendar backed car reservation functionality. This is the coffescript file.
updateEvent = (event, delta, revertFunc) -> $.aja
I had the same issue and i finally figured out.
I was using full day TRUE, as per the documentation if you use full day true it will behave in time.
so first, I changed full day to FALSE, then
in my end day I added $endDate."T23:59:00";
This worked for me.