I have a custom date field which I'm trying to update via Ruby API and I always get the same response:
[{"description"=>"PREMIUM STARTS AT: is invalid", "error"=>"InvalidValue", "ticket_field_id"=>xxxxxxxxx, "ticket_field_type"=>"FieldDate"}]}
I'm sending the date as follows: "2017-01-17T13:54:51Z"
I've tried also as UTC, got the same response. Which is the correct way to send this date?