Three tests are not entirely timezone-agnostic

The `ts-format`, `ts-parse-org`, and `ts-parse-element` tests seem to involve having either `ts-format` or `ts-unix` receive an object without timezone data declared, and then computing a time based on the user's timezone. Consequently, those three tests are failing on my machine, giving me results that are an integral number of hours off. Not the highest priority issue though.