Yahoo mail time stamps - how to read

[Tonks]

> bboyminn:
> 
> I check in a tech support forum, and the consensus seems to 
> agree with Random832. The time stamp is showing two separate
> pieces of information. The Local Time of the Sender, and
> the Sender's Time Zone.
> 
> So... 7:50 +0300 ... is 7:50 local Russian time, which is
> in turn in the Time Zone GMT +0300. 
> 

Tonks:
So if I got 2 e-mails one from California marked 11-09-07 at 
6:35:55 -0500 and one sometime later marked 11-10-07 on the inside 
of the e-mail but 11-09-07 on the outside (meaning the listing in my 
inbox at Yahoo) and the inside time of 7:50:33 +0300. What time is 
it in Michigan when the first one reaches me and when the second one 
reaches me, EST.  

Thanks!!
Tonks_op
who's math is only a little better than Rowlings.