Google Calendar is a time management and scheduling service developed by Google. Allows users to create and edit events, with options available for type and time. Available to anyone that has a Gmail account on both mobile and web versions.

Microsoft Office 365 is a suite of apps that helps you stay connected with others and get things done. It includes but is not limited to Microsoft Word, PowerPoint, Excel, Teams, OneNote and OneDrive. Office 365 allows you to work remotely with others on a team and collaborate in an online environment. Both web versions and desktop/mobile applications are available.

Apple calendar runs both the macOS and iOS mobile operating systems. Offering online cloud backup of calendars using Apple’s iCloud service, it can sync with Google Calendar and Microsoft Exchange Server. Users can schedule events in their day that include time, location, duration, and extra notes.

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Import events from an ICS Feed into Cal.com.

The world's fastest calendar, beautifully designed for a remote world

Caldav is a protocol that allows different clients/servers to access scheduling information on remote servers as well as schedule meetings with other users on the same server or other servers. It extends WebDAV specification and uses iCalendar format for the data.

Fetch Microsoft Exchange calendars and availabilities using Exchange Web Services (EWS).