export tab created date?

[Amy Rae Fox]

Long time fan... first time poster :)

Is there a way to retrieve the create date of a tab? I don't see it in the json export or backup, but perhaps I am missing it. It seems that sessions have create dates, but windows and tabs do not; is that correct? 

I am building a tool to visualize activity history with session buddy exports, and the date on which a tab is opened is an important component of the history. 

Thanks!