How often do you refresh meta descriptions? And does refreshing meta descriptions help in ranking?

[robotseo]

1. And does refreshing meta descriptions help in ranking?

2. How often do you refresh meta descriptions?

I am not sure whether it's a new feature, but I noticed this little time stamp on one of the search results, it says 1 day ago, and the website ranked quite high. So is there any correlation here?

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[JoeAmadon]

There is no connection to meta descriptions and rankings, so refreshing the content in the meta description will not help your rankings at all. The meta descriptions are typically used as the text below the page title in the SERP, so good meta descriptions can help click through rate. So write your meta descriptions for users, and only change the content if you believe you can create better copy that will drive more click throughs.