Recommend a small JS calendar_time and date

The core of the script is the DateAdd function. Click on the demo below to see the effect:
View the demo

The calling method is very simple,
Step 1: Include the calenderJS.js file at the top of the page:

Click to download this js file

Step 2: Add the onfocus event attribute to your input box:

HS_setDate(this) is the initialization function

This calendar has been applied to the sidebar of this blog, and Add ajax function to asynchronously query the days with logs and make them bold.