Sign in problems caused by incorrect time
If your PC’s clock isn't set correctly, it can cause errors in some apps. If you're getting the following errors, you might need to set your PC’s clock.
Windows Store. Your PC isn't connected to the Internet. To use the Store, connect to the Internet and then try again.
Internet Explorer. There is a problem with this website’s security certificate.
SkyDrive. There was a problem signing you in.
Video app. Can't sign in right now. Please try again later.
Music app. Can't play.
To set the clock
On the Start screen, enter Date, tap or click Settings, and then tap or click Set the time and date.
On the Internet Time tab, tap or click Change settings.
Check the Synchronize with an Internet time server checkbox and then tap or click Update now.
If your PC isn't connected to the Internet or your PC is set to Airplane Mode the synchronization will fail. Make sure that you're connected to the Internet and that your PC isn't in Airplane Mode.
When the synchronization is complete, you'll receive a message indicating that the clock was successfully synchronized, the name of the Internet time server, and the date and time of the last synchronization.
Once the date and time is synchronized successfully, restart the PC by swiping in from the right edge of the screen, and then tapping Settings.
(If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Settings.)
Tap or click Power, and then tap or click Restart.