AWSTime
The AWSTime scalar type represents a valid extended ISO 8601 Time string. In other words, this scalar type accepts time strings of the form hh:mm:ss.sss. The field after the seconds field is a nanoseconds field. It can accept between 1 and 9 digits. The seconds and nanoseconds fields are optional (the seconds field must be specified if the nanoseconds field is to be used). This scalar type can also accept time zone offsets. For example, 12:30Z, 12:30:24-07:00 and 12:30:24.500+05:30 are all valid time strings. 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.