Top Definition
When being at least 15 minutes late is acceptable. Also the next day doesn't start until you go to sleep and wake up the following morning regardless of time.
Shannon: it's midnight your birthday is over!
Jenn: No! I'm running on Brady time it's still my birthday until I wake up tomorrow.

Or

Jay: Your late!
Shannon: Only by an hour im still technically on time I run on Brady time!
by Brady time raveled December 25, 2013

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