-$ffmpeg_time_format = DateTime::Format::Strptime->new(pattern=>'%Y-%m-%dT%H:%M:%S', time_zone => 'UTC', on_error => 'croak');
+$ffmpeg_time_format_utc = DateTime::Format::Strptime->new(pattern=>'%Y-%m-%dT%H:%M:%S', time_zone => 'UTC', on_error => 'croak');
+$ffmpeg_time_format_local = DateTime::Format::Strptime->new(pattern=>'%Y-%m-%dT%H:%M:%S', time_zone => 'local', on_error => 'croak');