How to set the computer desktop to countdown? I want it now

To set the college entrance examination countdown steps on the computer desktop, download and install the CEET college entrance examination countdown timer and turn it on. A small blackboard is displayed on the desktop, showing the countdown, with warm reminders and college entrance examination motivational statements.

CEET college entrance examination countdown timer has the following characteristics:

1. Complete and practical functions, beautiful interface.

2. It can calculate the number of days until the nearest college entrance examination, and it can be started automatically when the computer is turned on.

3. The slogan is automatically updated, and the software automatically prompts for updates.