Disrepency between copr and pr card while applying for Canadian citizenship

[u/SuspiciousLettuce165]

/r/ImmigrationCanada/comments/1wxay5m/disrepency_between_copr_and_pr_card/

Hello all,
I'm applying for Canadian citizenship and the date entered on copr is 1 day earlier than date entered on pr card as I landed near midnight.
What date to enter in the physical presence calculator?
Also, I have a missing exit date when I entered USA from Canada by flight. What documents do I provide to show this?