Is it Possible? How Can I do this?
Yes, using google api you can do that.
- Create an API app in google developer account
- From the "Credentials" tab you can create an API key, you get
something like this "AIzaSyBcOT_DpEQysiwFmmmZXupKpnrOdJYAhhM"
- Then you can access holiday calender using this url