Calendaring with Outlook Web App (OWA)
OWA can be used to access your calendar from any device with a network connection and a web browser.
Microsoft's support website (help.outlook.com) answers many questions on how to use OWA. Below are links to popular support articles:
FOR MAC USERS: You may not have right-click enabled on your computer. If the instructions say to “right-click”, press Control and click instead.