How does excel count down the date?

How does excel count down the date? It's easy to count down with Excel. You only need a formula to count down, and you can calculate all the important holiday countdown rooms.

1, formula: = date (2019,9,13)-today ()&; "God".

You can set the time of the date part by yourself, and fill in the time to count down.

The above is the method of counting down the date in excel, which can be completed with only one function.