LightRoom seems not good for chronology, certainly I made a mistake with PM.
When it is fine, I see in IPTC info date 10/12/2008 (with {shot}) and near Urgency I read "time and date " 10/12/2008 OK !
What about a picture with 10/12/2008 ( I am certain it is shot time) and "time and date " = 22/11/2009
I understand there is two dates, LR takes only the second date to order pictures with time, results are bad.
No explications about "date and time" in PM manuel. I need copy shot time on the second date.
Sorry, very difficult for me to explain in english !
I hope your database and will quit LR !
Thanks