How to View Timestamps in Messages for Mac OS X
Messages in Mac OS X has two methods of time-stamping messages; an automatically applied timestamp when a new conversation starts or message is received, and a lesser known ability to view the timestamp of any iMessage or text message sent with the Mac Messages app. We’re going to focus on the latter approach since it will allow a Mac user to reveal the exact date and time that any message was sent or received within the Messages app of Mac OS X.