remove post date from homepage and categories

Earlier I had put the below code in the additional CSS section of my website and everything seemed fine:

“p.post-byline {
display: none !important;
}”

But on the home page, the post date is still showing for the posts and even if you click on a category – the post date of each blog post is showing.
However, if you click on a single blog post under a category the author name and date is not showing.
I want the date to be removed from the homepage and categories as well.
Please let me know what to do for the same.

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