Sync or access your calendar on multiple devices and applications
Yahoo Calendar uses the CalDAV internet standard and iCal (ICS) file format to allow access to your calendar. Sync or access your calendar across many applications, mobile devices, and desktop computers.
Sync Yahoo Calendar with other CalDAV supported devices. Steps vary by device, but you must enter your Yahoo ID and the app generated password as well as the CalDAV URL associated with your account.
In your device settings, enter https://caldav.calendar.yahoo.com in the server URL field.
Yahoo Calendar syncs with applications that support the iCal (ICS) format. Consult the application user documentation or contact its manufacturer for support.
If your device doesn't support CalDAV, access your Yahoo Calendar through your browser of choice by going to https://calendar.yahoo.com and signing in with your account info.