Lemke Software GmbH Forum

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??

Please forward a sample file for testing to support@lemkesoft.de

"1921 east european time zone was in effect 1.5.1921. It was +20 min 10,9 sec the previous time."

https://fi.wikipedia.org/wiki/Suomen_aika

That date is indeed the breaking point for this effect.

So maybe because I get +11 seconds (or +22 seconds for file rename??) for times before 1921-0501 relates to this? But that somehow misses those +20 minutes.