You don't have to accommodate her if it is unreasonable. That's why I asked if she was unreasonable. We don't know your situation or schedule so it's hard to have an opinion without knowing more.
And you bending over backwards will only make you resentful and cause tension.

How does she expect you to be there at 4:30 if you work until 4:30?

M 16 yrs, WH62, P54
3 adult blended kids
EA 11/13, BD1 6/14
PA fall 14, BD2 2/15
Piecing 2015, BD3 12/15
Separated 4/16
WH moved OW in 5/16
Divorced 6/15/17