Yes. I think the IRS probably recognizes a small grace period since only the distribution date is provable. Receipt time is affected by the PO, weekends, holidays and even delays in actual mailing a processed distribution at the custodian end. But if the IRA owner is on vacation, the concept of constructive receipt of a check would apply, ie the first day the IRA would have had access to the check. Of course, for transfers from the custodian to a bank checking account, the receipt date would be the day the deposit is posted to the account.
On the other hand, QCDs and RMDs are considered completed on the distribution date, not the received date, although a QCD also needs to be forwarded to the charity before year end, preferably received by the charity.