Set creation date on export in darktable .config/darktable/luarc

luarc

local darktable = require 'darktable'

local function set_create_date(event, image, filename, format, storage)
    local pattern = '(%d+):(%d+):(%d+) (%d+):(%d+):(%d+)'
    local timeToConvert = image.exif_datetime_taken
    local runyear, runmonth, runday, runhour, runminute, runseconds = image.exif_datetime_taken:match(pattern)

    local convertedTimestamp = os.time({year=runyear, month=runmonth, day=runday, hour=runhour, min=runminute, sec=runseconds})
    local convertedDate = os.date('%Y%m%d%H%M.%S', convertedTimestamp)

    os.execute('touch -t '..convertedDate..' '..filename)
end
darktable.register_event('set-create-date', 'intermediate-export-image', set_create_date)