What time do Messenger links expire?

Messenger links expire at the end of the day (11:59:59 PM) on the selected expiration date, according to the time zone of the sender.

NOTE: As of June, 2015, an update has been made to the Messenger to expire a recipient's session within 2 minutes of link expiration, which is especially important in times when access must be removed quickly. Previously, the recipient could continue viewing the Messenger until their browser session had expired.

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