Photoshop version is 13.0.1 x64

OS is OS X 10.8.2

File is from my Canon 1Ds

I finally figured out how to have CS6 display the time in seconds.  First go to the Apple menu and select System Preferences, Date & Time.  Then click on "Open Language & Text", click on "Region", and click on "Times/Customize".  You will see 4 selectable options:  Short, Medium, Long, and Full.  Here is where it gets confusing.  OS X ignores which option you choose;  only the Short option is used.  The Short option is initially set to not display seconds.  So type in a colon and drag the oval icon from one of the other options to the Short option.  Then click OK.  Now when you select an image file and press Command I, you will see the creation date with seconds.  Photoshop will now also display the creation time in seconds.  Photoshop rounds off differently than OS X, so the actual value will sometimes differ. 

In my opinion:

1)  It would have been better for Apple to use a less confusing method to select the style of displaying the time

2)  Adobe would be better off not relying upon the operating system to get the creation time of the file.  That information is provided by the camera, and is incorporated in the file.

Thanks for the advice about updating.  I did the update, and found that Photoshop still relies upon OS X to decide whether to use seconds or not.  A related question is:

why when in Photoshop, I go to File/File Info... and click on Camera Data, do I not see any date information, in spite of the fact that the camera has that information?  I do see the creation date under Description, Audio Data, Origin, and Raw Data.  This seems odd.  Is there some way to add the date information to the Camer Data field?

Thanks conroy!  The milliseconds show up for later camera models but not earlier ones.  Since that information is a function of the camera, you know how I could make it show up under the "Camera Data" tab as well as under the "Advanced" tab?

On my Canon 5D Mark II, I see the time to milliseconds.  On my older 1Ds I see the time only to seconds.  Also, I can set the date and time to any time zone I want on my cameras.  When I create a "photo" the camera tags the file on the camera card with the current time.  The camera thus is responsible for the date of a photo and its precision, as well as the ISO, speed, and aperture.  The date therefore should be included under the Camera Data tab, as it used to be in earlier Photoshop versions.

Dear Curt Y,

I'll be able to try that experiment in 2 weeks.

I should have said that the probability is 1 part in 10 to the 15th power or 1 part in a quadrillion.