Η application Ημερολόγιο της Google είναι παγκοσμίως εκτός mode. Either it throws the familiar 404 error message, or the app simply never opens.
At least to us, the efforts access that we did in the calendar, they gave us the 404 message. Google already has points out the fact after notifying users, confirming that users cannot access Calendar her.
The company's announcement so far is: “We are looking into reports of a problem with Google Calendar. We will provide more soon information".
All other Google services, such as Gmail and Maps, etc., do not appear to be affected.