The PlayStation Network is currently:
In order to continue to deliver you the best online games experience, we will be performing maintenance on:
Start: Monday, March 31, 2014 7:50 AM PT
End: Monday, March 31, 2014 9:50 AM PT
During this maintenance period, you may receive a message that states “Sony Entertainment Network is undergoing maintenance” when attempting to access the PlayStation Store or PlayStation Home.
PS4 users will not be able to view the What's New, Live, and Library areas of their console. Share functions will be impacted as well.
We will update you with any changes that may occur in regards to this scheduled maintenance. If you would like to receive a notice when PSN is fully restored, be sure to follow the official PlayStation Twitter account and our support Twitter account, @AskPlayStation.
You will be able to play soon.