Anyone know why the date listed for a gem listed on rubygems.org wouldn't match the contents of the gem? I am guessing possible timezone differences. But some c

Anyone know why the date listed for a gem listed on rubygems.org wouldn't match the contents of the gem? I am guessing possible timezone differences. But some clarification would be nice. For example: Listed for bundler -v 1.11.2 - December 16, 2015 (257 KB) $ tar tvf bundler-1.11.2.gem -r--r--r-- 0 wheel wheel 2161 Dec 15 19:12 metadata.gz -r--r--r-- 0 wheel wheel 257198 Dec 15 19:12 data.tar.gz -r--r--r-- 0 wheel wheel 267 Dec 15 19:12 checksums.yaml.gz