Bay Time 

When someone arrives 10 minutes to an hour late at any event, especially for work, bridal showers, weddings, circumcisions, or any other events when there is a specified time in which you should arive

"Jackie must be in Bay Time she's not here yet!"

Bay Time by Ashley Bay May 27, 2005

bay area time 

Whenever the time of day is the same as the following area codes of the bay area:
408=4:08
415=4:15
510=5:10
650=6:50
707=7:07
831=8:31
925=9:25

09/12/2007 05:10 PM Steve: What time is it?
09/12/2007 05:10 PM Gabe : It's bay area time.
09/12/2007 05:10 PM Steve: ahaha, cool!
09/12/2007 05:11 PM Gabe: :( We have to wait until 6:50 now... -_-

bay area time by gabemstr September 25, 2007