Adding the Web Part to a Page
Go to SharePoint site where you want to add the web part and open “Edit - Edit page”.
You will switch to edit mode. Click “Add a Web Part”.
Select Virto Clock and Weather Web Part at the bottom of the list and click “Add”.
Once you have clicked “Add” button, use “Exit edit mode” button.
Note: if you want to display both weather and time on your site, you must add two web parts and adjust each of them according to required view.