iPhone Date Stamps
iPhone text messages may be produced as screenshots, rather than being processed with mobile discovery software that collects their metadata. As iPhone users will have noticed, the Message app does not display the time and date of each message. Rather the date will be inserted at different points in a series of messages.
When scrolling through such screenshots, note that a new datestamp should be added each time a new text is sent between two or more recipients after the beginning of a new day.