The past few days saw the PlayStation Network undergo moredowntime than a bear in winter, so Sony postponed Monday's regular maintenance 'til later in the week. That later is today, and between 12:40PM and 7:50PM ET (9:40AM and 4:50PM PT) PlayStation users won't be able to access the Store, Home or Account Management. As long as you've signed in at any point since August 23, you'll still be able to play games online and use apps like Netflix, Hulu Plus and so on.
It's always frustrating when you can't access stuff, but in the words of Ferris Bueller, "Life moves pretty fast. If you don't stop and look around once in a while, you could miss it." In other words, perhaps use the downtimes to dine at a fancy restaurant, take the stage at a parade, and find epiphanies in the destruction of your father's rare Ferrari.
Just to be clear, we're not telling you to ruin your dad's Ferrari. Or any car. Look, this Ferris Bueller reference has gotten away from us, and we'd like to bail out right now.