Deadline - received or postmarked?

Colleges and Universities A-Z University of Southern California
1

<p>Is the deadline for submitting the application online the received-by or postmarked-by date?
In other words, do I have to press "submit" by 11:59 p.m. tomorrow or 11:59 p.m. on Saturday, Jan 10th?</p>

2

<p>Postmarked. So by 11:59PM, on January 10th.</p>

3

<p>thanks! 10char</p>