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File times differ from time in file name


hefy_jefy
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The filename that BYE sets has the correct (PC clock) time, but the filetime written by windows is wrong by about an hour.  e.g. 16h22m49s459ms.CR2 has a windows file time of 3:25pm.  I thought this was a Windows problem but if I just create any file and save it the time is correct i.e. it agrees with the PC clock time.  Very odd.

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Its very strange I have checked the windows time zone, its set to (UTC -8:00) Pacific Time (US & Canada) and the PC time is correct.  Also, if I save a file outside of BYE the file time is correct.

And the actual time that BYE writes to the file name is correct.  This is not a big deal, I have gotten used to it.  Attached is a screen shot of windows explorer, as you can see the file time is 1hr +exposure time (200sec) earlier than the actual time...

Image1.jpg

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I figured it out - duh...

The time in the camera was wrong - it wasn't adjusted for daylight savings!

On my setup it's not easy to get to the camera screen so I used another PC running the EOS Utility 2 (its a Canon SL1) to set the camera to daylight savings and now times are correct.

Geoff

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So, BYE is using the camera time in the metadata for the timestamp portion of the file name. That could be a design flaw. Camera times are often inaccurate. I would suggest a change to BYE to use the PC clock time for the filename's timestamp.

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BYE does not use the camera clock, it uses the PC time for its file name. BYE does not attempt to 'set' the native file time stamps, these are as-is, either set in part or in full from either the file system and/or the camera metadata attributes.

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I understand.  It's fine, the camera is actually writing the file, but instead of writing it to its internal flash card its being sent directly to the PC hence the file has the camera time.  And BYE then writes the filename based on the PC time.  Now I fixed the camera time the filename and file time now agree within a few seconds.

Thanks for all the input!

Geoff

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