Hi Phil, I got round to testing with the "auto adjust for daylight savings" turned off with the following results:
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CPAN::Forum
Image-ExifTool - Re: Problem Setting FileModifyDate
| Posted on Fri Jul 18 14:15:00 2008 by justin in response to 8347 (See the whole thread of 26) |
| Re: Problem Setting FileModifyDate |
|
Hi Phil, I got round to testing with the "auto adjust for daylight savings" turned off with the following results:
C:\nefs>exiftool -alldates -filemodifydate *
======== 2007-03-25_D50_DSC_4513.NEF
Date/Time Original : 2007:03:25 18:35:16
Create Date : 2007:03:25 18:35:16
Modify Date : 2007:03:25 18:35:16
File Modification Date/Time : 2008:07:14 16:02:49
======== 2007-03-25_D50_DSC_4514.NEF
Date/Time Original : 2007:03:25 18:35:37
Create Date : 2007:03:25 18:35:37
Modify Date : 2007:03:25 18:35:37
File Modification Date/Time : 2008:07:14 16:02:49
======== 2007-03-25_D50_DSC_4515.NEF
Date/Time Original : 2007:03:25 18:35:59
Create Date : 2007:03:25 18:35:59
Modify Date : 2007:03:25 18:35:59
File Modification Date/Time : 2008:07:14 16:02:49
======== DSC_1056.NEF
Date/Time Original : 2008:06:18 15:10:17
Create Date : 2008:06:18 15:10:17
Modify Date : 2008:06:18 15:10:17
File Modification Date/Time : 2008:06:18 16:10:20
4 image files read
C:\nefs>exiftool "-filemodifydate<createdate" *
4 image files updated
C:\nefs>exiftool -alldates -filemodifydate *
======== 2007-03-25_D50_DSC_4513.NEF
Date/Time Original : 2007:03:25 18:35:16
Create Date : 2007:03:25 18:35:16
Modify Date : 2007:03:25 18:35:16
File Modification Date/Time : 2007:03:25 19:35:16
======== 2007-03-25_D50_DSC_4514.NEF
Date/Time Original : 2007:03:25 18:35:37
Create Date : 2007:03:25 18:35:37
Modify Date : 2007:03:25 18:35:37
File Modification Date/Time : 2007:03:25 19:35:37
======== 2007-03-25_D50_DSC_4515.NEF
Date/Time Original : 2007:03:25 18:35:59
Create Date : 2007:03:25 18:35:59
Modify Date : 2007:03:25 18:35:59
File Modification Date/Time : 2007:03:25 19:35:59
======== DSC_1056.NEF
Date/Time Original : 2008:06:18 15:10:17
Create Date : 2008:06:18 15:10:17
Modify Date : 2008:06:18 15:10:17
File Modification Date/Time : 2008:06:18 15:10:17
4 image files read
C:\nefs>exiftool -filemodifydate-=1 *
1 image files updated
3 image files unchanged
C:\nefs>exiftool -alldates -filemodifydate *
======== 2007-03-25_D50_DSC_4513.NEF
Date/Time Original : 2007:03:25 18:35:16
Create Date : 2007:03:25 18:35:16
Modify Date : 2007:03:25 18:35:16
File Modification Date/Time : 2007:03:25 19:35:16
======== 2007-03-25_D50_DSC_4514.NEF
Date/Time Original : 2007:03:25 18:35:37
Create Date : 2007:03:25 18:35:37
Modify Date : 2007:03:25 18:35:37
File Modification Date/Time : 2007:03:25 19:35:37
======== 2007-03-25_D50_DSC_4515.NEF
Date/Time Original : 2007:03:25 18:35:59
Create Date : 2007:03:25 18:35:59
Modify Date : 2007:03:25 18:35:59
File Modification Date/Time : 2007:03:25 19:35:59
======== DSC_1056.NEF
Date/Time Original : 2008:06:18 15:10:17
Create Date : 2008:06:18 15:10:17
Modify Date : 2008:06:18 15:10:17
File Modification Date/Time : 2008:06:18 14:10:17
4 image files read
***** AT THIS POINT I DISABLED "AUTOMATICALLY ADJUST FOR DAYLIGHT SAVINGS" *****
C:\nefs>exiftool -filemodifydate-=1 *
4 image files updated
C:\nefs>exiftool -alldates -filemodifydate *
======== 2007-03-25_D50_DSC_4513.NEF
Date/Time Original : 2007:03:25 18:35:16
Create Date : 2007:03:25 18:35:16
Modify Date : 2007:03:25 18:35:16
File Modification Date/Time : 2007:03:25 17:35:16
======== 2007-03-25_D50_DSC_4514.NEF
Date/Time Original : 2007:03:25 18:35:37
Create Date : 2007:03:25 18:35:37
Modify Date : 2007:03:25 18:35:37
File Modification Date/Time : 2007:03:25 17:35:37
======== 2007-03-25_D50_DSC_4515.NEF
Date/Time Original : 2007:03:25 18:35:59
Create Date : 2007:03:25 18:35:59
Modify Date : 2007:03:25 18:35:59
File Modification Date/Time : 2007:03:25 17:35:59
======== DSC_1056.NEF
Date/Time Original : 2008:06:18 15:10:17
Create Date : 2008:06:18 15:10:17
Modify Date : 2008:06:18 15:10:17
File Modification Date/Time : 2008:06:18 12:10:17
4 image files read
C:\nefs>
Note that with the "auto adjust" turned off, all the times change by 2 hours! This has left me scratching my head a little. Looks like the later version of Pearl may be worthy of consideration. |
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