Probably a dumb question... but I'm trying to make a mutation that requires a DateTime scalar. I've tried inputting it in as 2017-09-27 000000-0700 and "2017-09-27 000000-0700" but it's not accepting it as valid when I try to run the query in the graphcool playground. Does anyone know where I can find the proper way to do this?

Graphcool follows ISO 8601 standards, so anything you find here is valid: https://en.wikipedia.org/wiki/ISO_8601

You're hte man