Fallenreaper said
The choice is yours. Just let it be known you might be waiting a while and the next skip is to winter which would put Cynn's magic level behind everyone else's a bit. This might limit her ability a bit for the hell planned. Another note is that it takes about 3 total IC years, including time skips, to advance a level at least. So knowing this and you still want to do this, then by all means I have no problem with it. Not to forget the setting would also skip towards the evening of that day where it might be harder for Cynn to actually get into the school because gates tend to be closed unless you write it she arrived that morning and just finished settling in.
So wait, is it the remainder of today, then the next day, then the time skip? Or is it the remainder of today, then the time skip?