OK, with the help and direction from PeterQuinn and JeVois, I have validated and proved exactly what I am looking for.
With a simple serial comand sent to the JeVois, you can set its internal clock to any value you desire. You can not send the milliseconds, but with careful timing of when you send the command, you can get very close to the 0 ms mark.
Once the clock on the JeVois is set, you have several options to get the current date and time back and include down to the micro second.
With the Time library you can use time.time() to get YYYY.MM.DD-HH.mm.ss.xxxxxx .
With the Datetime library you use datetime,datetime.now(). Once you have gathered your timestamp, datetime has multiple formatting options to get your time and date information back out.