Pre-1920 EXIF date weirdness
Posted: Mon Aug 20, 2018 9:10 pm
I have adjusted EXIF dates in old scanned .jpg photos via the GC browser (I also save Caption, Keywords, GPS and rating to the files). I rename the files as YYYY-MMDD-hhmm-ss.jpg (OS X 10.11.6, GC 10.6.2).
Why do pre-1920 EXIF dates behave like this:
I set the EXIF date as 1920-0601-1000-00 but the file is renamed as 1920-0601-1000-22.jpg.
As a workaround I shift the EXIF timestamp TWICE with -22 seconds (-44 seconds just once does not do it), THEN the file can be renamed correctly as 1920-0601-1000-00.jpg.
Why does this happen??
Why do pre-1920 EXIF dates behave like this:
I set the EXIF date as 1920-0601-1000-00 but the file is renamed as 1920-0601-1000-22.jpg.
As a workaround I shift the EXIF timestamp TWICE with -22 seconds (-44 seconds just once does not do it), THEN the file can be renamed correctly as 1920-0601-1000-00.jpg.
Why does this happen??