Scheduling and managing events using Outlook.com calendar
Hi Lilly ! This is Benpella . I'm a fellow Outlook.com user and I'm sorry to hear about the issue.
Normally, all items in your account will sync to your Windows phone just like your calendars, emails, and contacts. Regarding your concern, have you checked if your Outlook app is set to the correct time zone on your computer? It's possible that it was set to an incorrect time zone that's why it informs you that all your events are set 11 hours early. You can check it by going to File > Options > Calendar > Time Zones.
Benpella