What is the best calendar desktop software?

The office software used for recording on the computer desktop recommends cloud notes;

On the computer version of cloud notes, you can edit and display the contents of the notes directly on the computer desktop, and you can edit the notes at will on the computer desktop.

There is a diary timeline list on the post-it note. All the notes are kept in the timeline permanently, and the notes deleted by mistake can be retrieved through the timeline.

Support the calendar overview function on the web version of cloud post-it notes, and you can view the diary schedule on the post-it notes by month and day.