Free tool

LinkedIn post date extractor

LinkedIn shows “3mo” instead of a date. Paste a post or comment link to see the exact day and time it was published, down to the second.

Runs in your browser: the link isn't sent anywhere.

How to use it

Find the exact date of a LinkedIn post in three steps.

  1. 01

    Copy the link

    On the post, click ··· and choose “Copy link to post”. For a comment, click ··· on the comment and choose “Copy link to comment”.

  2. 02

    Paste it here

    Paste it in the box above. The date appears as soon as you paste.

  3. 03

    Read the exact time

    You get the date in your own time zone, in UTC and as a Unix timestamp, each ready to copy.

How it works

The date is hidden in the post's id.

Every LinkedIn post, repost and comment has a 19-digit id, the number you see in its link: 7457187041408262144 in urn:li:activity:7457187041408262144. Written in binary, the first 41 of its 63 bits are the moment LinkedIn created the id, counted in milliseconds since 1 January 1970.

So the date needs no lookup: shift the id 22 bits to the right and you get a Unix timestamp. For the id above that's 1777931938507, which is 4 May 2026 at 21:58:58 UTC. That's also why the date survives edits, and why it can be read from a link to a post you can't open.

JavaScript
// LinkedIn: the top 41 bits of the id are milliseconds since 1970
const id = 7457187041408262144n;
new Date(Number(id >> 22n)).toISOString();
// "2026-05-04T21:58:58.507Z"
Python
from datetime import datetime, timezone

post_id = 7457187041408262144
datetime.fromtimestamp((post_id >> 22) / 1000, tz=timezone.utc)
# 2026-05-04 21:58:58.507000+00:00

FAQ

Questions, answered.

Is the date exact?
Yes, to the millisecond. LinkedIn writes the moment it created a post's id into the id itself, and the id is in the post's link. The tool shows that moment in your time zone and in UTC.
Does it work for comments and replies?
Yes. Copy the link to the comment (··· on the comment, then “Copy link to comment”). The tool shows when the post was published and when the comment was written, and when the reply was written for a link to a reply.
Does editing a post change its date?
No. Editing a post keeps its id, so the date it shows is when the post was first published, not when it was last edited.
Does it work for posts I can't open?
Yes, as long as you have the link: the date is read from the id in the link, so the post doesn't need to be public or still online.
Does it work for LinkedIn articles?
Article links (linkedin.com/pulse/…) carry a title instead of an id, so there's no date in them. The article page shows its own publication date.
Does it work for X (Twitter) posts?
Yes. Paste a link like x.com/someone/status/… and the tool reads the date from the post id the same way. X counts its ids from 4 November 2010 instead of 1970, and the tool allows for it.
Is the link I paste sent anywhere?
No. The date is worked out in your browser from the link itself: nothing is sent to Lempile, to LinkedIn or anywhere else.
How do I get the dates of many posts at once?
With Lempile's LinkedIn API: GET /api/v1/users/{identifier}/posts lists a person's or a company's posts, and every post comes with parsed_datetime, its exact time read from its id the same way.

Post dates for every post, by API.

Lempile reads LinkedIn profiles, posts, comments and inboxes from each account's own session, at a human pace. 7-day free trial, no card needed.

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