Parse TimeZone information and use it for Exif.DateTime()

rwcarlsen / goexif

Decode embedded EXIF meta data from image files.

BSD 2-Clause "Simplified" License

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Parse TimeZone information and use it for Exif.DateTime() #50

Closed aykevl closed 6 years ago

aykevl commented 7 years ago

Load timezone information for recent Canon devices. Tested with pictures taken with a not-so-recent Canon PowerShot SX240 HS. It takes both timezone and DST in account (that is, DST is as if moving a timezone to the east).

See also:

http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html#TimeInfo
http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#WorldTime
http://photo.stackexchange.com/questions/62082/is-there-any-hope-for-exif-timezoneoffset-as-a-standard

xor-gate commented 7 years ago

@aykevl It seems the author is not very active in this project anymore, many forks have been created. I would like to make this stable and I created goexif2 which integrates your patch: https://github.com/xor-gate/goexif2/commit/c6729ddda860ce09b9788a43c6ba0f8ecba21d6c

aykevl commented 7 years ago

Thank you!

bradfitz commented 6 years ago

This LGTM. @rwcarlsen, @mpl, could you merge?