My priest said he can only do our rehearsal at 7pm. We're getting married on a Sunday, and the priest will be busy with Saturday afternoon mass and other obligations for most of Saturday. Originally, I thought "that's okay, we'll have a nice, grown up 8:30pm rehearsal dinner." But then I remembered that over half (more like 2/3) of the OOT guests invited to the RD are from EST (we're PST), so that'd be asking them to wait until 11:30pm to eat.
Here's the other thing. My FMIL only wants to invite 70 people max to the RD. Just WP and OOT family is 60, and we probably have 120 OOT guests total, so about 50 of my FI's and my friends traveling in would not be invited to my FMIL's RD. Yes, FMIL/FFIL are paying for the RD.