LinkedIn Post Date Extractor - Free Online SEO Tool

The LinkedIn Post Date Extractor is a free online tool that reveals the exact date and time any LinkedIn post, share, ugcPost, or comment was published — decoded directly from the URL or post ID, without ever needing to open LinkedIn or query its servers. This is invaluable for marketers auditing content timelines, researchers verifying claims, recruiters checking activity history, and anyone who needs to confirm precisely when a piece of LinkedIn content went live, even if the post has since been deleted or made private.

How It Works

LinkedIn generates its 19-digit post IDs using a Snowflake-style scheme, where the first 41 bits encode the Unix timestamp in milliseconds at the moment of creation. This tool converts the ID into binary, extracts those bits, and translates them into a precise, human-readable timestamp — all inside your browser, with no data ever transmitted externally. Every result includes a transparent breakdown so you can verify the calculation yourself.

Key Features

• Wide URL support: Paste standard post URLs (the -activity- form), feed update URLs containing urn:li:activity, urn:li:share, or urn:li:ugcPost, comment permalinks with urn:li:comment, or simply a bare 19-digit post ID.
• Batch processing: Submit up to 50 URLs or IDs at once, one per line, and get instant results for the entire list.
• Multiple timezone views: Display results in your Local time, UTC, Europe/London, or Asia/Kolkata.
• Detailed output formats: Each result includes a readable Date, ISO 8601 (UTC) format, the raw Unix timestamp, and the post's Age relative to today.
• Export options: Copy all results or export them as a CSV file for reporting and record-keeping.
• Comment date detection: Paste a comment permalink to reveal both the comment's timestamp and its parent post's original publish date.

How to Use It

Simply paste one or more LinkedIn post URLs, comment permalinks, or bare post IDs into the input box — one per line — select your preferred timezone from the "Show times in" dropdown, and the tool instantly decodes each entry to display its precise publication timestamp, ISO format, Unix time, and age.

Best Practices

When auditing content strategy or competitor activity, use the batch mode to process entire lists of URLs at once and export the results to CSV for easy comparison in a spreadsheet. If you need to confirm a claim about when something was posted, cross-check the ISO 8601 timestamp against other evidence, and use the "Show-the-math" breakdown to independently verify the decoded date. Remember that LinkedIn articles and newsletters under /pulse/ are not supported since their URLs lack an encoded post ID.

Benefits

This tool offers a fast, private, and highly accurate way to determine LinkedIn post timestamps without logging in, installing anything, or worrying about deleted content. Because the entire process runs client-side in your browser, nothing you paste is ever stored or transmitted, making it a safe and reliable solution for content verification, research, and reporting.