Coding Date/Time snapshot

[CMinusMinusPlus]

how can i encode the current date and time of the file creation, into a comment header. code blocks is difficult with this. I need it in the following format:

M/D/Y <Eastern Standard Time>

Say for today's date:

dev c++ does this: 15/12/2014 <EST Miltary Time>

Code Blocks (Depending on abbreviation) :
2014-12-15- <EST Miltary Time>
2014-12-15-<EST Miltary Time>
2014-12-16-<EST Miltary Time>
20141215
20141216
2014-12-15
2014-12-16
Tuesday