Install vdirsyncer by entering the following commands in the terminal:
sudo apt update sudo apt install vdirsyncer
Description:
Synchronize calendars and contacts
Vdirsyncer synchronizes your calendars and addressbooks between two storages. The most popular purpose is to synchronize a CalDAV/CardDAV server with a local folder or file. The local data can then be accessed via a variety of programs, none of which have to know or worry about syncing to a server. . It aims to be for CalDAV and CardDAV what OfflineIMAP is for IMAP.
Homepage: https://github.com/pimutils/vdirsyncer
Version: 0.16.2-4
Section: universe/utils