Does not work for datetime string without time zone designator

Hello,

If I'm not mistaken `2018-09-06T00:00:00` should be a valid ISO8601 format.

I shamelessly copied and tweaked the Ellie example from @gyzerok. 
https://ellie-app.com/3jRZM4f34Hja1

thanks