This could be quite easy but its a helpful tweak to add a Date display to your blogger blog. It would show the current day of the year.
How to add Date in Blogger
– Log in to your blogger account, click on Design >> Edit HTML
– Tick the “Expand Widget Templates” checkbox.
– Find this tag by using Ctrl+F </head>
– Paste the code found below before the </head> tag.
– Paste the below code.
– Save it, preview your blog and see the days date.