Grabbing specific date info from a stored date time value

[Web Global Net]

<? php substr("dynamic value", 5, 2);?> or as it would appear <? php substr("2010-05-30 07:32:44", 5, 2);?>

5 Represents the last digit to ignore before reading the information and 2 represents the amount of data or information to grab

so in <? php substr("2010-05-30 07:32:44", 5, 2);?>

it would grab 05 or month of May