Why can't I select some of the dates on the calendar when I am scheduling a payment?

There are several limits to the dates you can schedule for payments:

Recurring payments cannot be scheduled for the 29th, 30th, or 31st of the month.
One-time payments cannot be scheduled for weekends, bank holidays, or further than 60 days in advance.

Note: A payment scheduled before 5:00 p.m. PST will be credited to your account that same day.