a change in/to/of your schedule

[pinkie9]

I asked my boss for next Wednesday off to meet you.
If there is a change in/to/of your schedule, please let me know as soon as possible.

Which of "in", "to", or "of" should I use here?

Thank you.

 

[cereal_chick]

"Of" sounds doubtful to me, so don't use it. "In"/"to" are fine, but "in" would mean a change to something inside the schedule; a particular part, whereas "to" would mean a general change to the (whole) schedule. The best one is "to" and that is what I would use.

[Not a teacher]

 

[emsr2d2]

I would say either "If there's a change to your schedule ..." or "If your schedule changes ...".