If you're *nix user, you can quite easily perform this kind of stuff using date, or at least using date from coreutils. $ date -d 'today + 6 weeks' Mon

If you're *nix user, you can quite easily perform this kind of stuff using date, or at least using date from coreutils. $ date -d 'today + 6 weeks' Mon Aug 24 13:15:54 CEST 2015 $ TZ=America/New_York date -d 'now + 2 hours' Mon Jul 13 09:16:17 EDT 2015