When I’m researching a topic with Grok, I sometimes need to narrow the search to a specific period—for example, posts and pages published during the first week after a product announcement. I haven’t found a dependable way to tell whether the results are limited by date or just happen to be recent.

Is there a built-in date filter or a prompt pattern that gives consistent results? I’d like to hear how people check the publication dates Grok uses, particularly when a search mixes web pages with posts from X.