What do the timestamps in the long results table mean?

• Created = Server-based timestamp – when the item was created (before the page was loaded)
• Saved = Server-based timestamp– when the item was stored on the server (after the page was submitted)
• Shown = Client-based timestamp (Javascript, could be faked by user) – When the item was shown (pageload or later if it as a showif item)
• Shown_relative = As above, but submillisecond precision, relative to the time pageload, will not work in old browsers.
• Answered = Client-based timestamp (Javascript, could be faked by user) – When the item was answered (pageload or later if it as a showif item)
• Answered_relative = As above, relative to the pageload, submillisecond precision, will not work in old browsers.

See here for an example of this data can be analysed. https://rubenarslan.github.io/routinely_randomise/

The client-side values are set here: https://github.com/rubenarslan/formr.org/blob/169bb60ae128ef32254d5d455ffdc534ec55f868/webroot/assets/common/js/survey.js#L353