How to Convert a date to time ago

How to Convert Date to Time ago WordPress

This Snippet is supposed to add in single.php, index.php or any other template within the loop. Don’t you think it would be finest thing to display on post where you can show post like “1 hour ago, 2 hour ago, 1 day ago” etc.

echo human_time_diff( get_the_time('U'), current_time('timestamp') ) . ' ago';

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