Just so nobody runs into the same issue I did:

I got impatient waiting for my CC bill to post last month, so the day after it usually comes I signed online to the Chase site and changed the due date (when the bill would be mailed) from the 23rd to the 15th. Apparently, since that date had already passed it changed my current billing cycle to end the next month. The issue? Now I'm in a 60-day billing cycle, and if I had not paid off the *then current* balance in full halfway through, I would be assessed interest charges.

Just FYI...