AWSDate
The AWSDate scalar type represents a valid extended ISO 8601 Date string. In other words, this scalar type accepts date strings of the form YYYY-MM-DD. This scalar type can also accept time zone offsets. For example, 1970-01-01Z, 1970-01-01-07:00 and 1970-01-01+05:30 are all valid dates. The time zone offset must either be Z (representing the UTC time zone) or be in the format ±hh:mm:ss. The seconds field in the timezone offset will be considered valid even though it is not part of the ISO 8601 standard.