const github.com/aws/smithy-go/time.dateTimeFormatOutput

2 uses

	github.com/aws/smithy-go/time (current package)
		time.go#L15: 	dateTimeFormatOutput   = "2006-01-02T15:04:05.999Z"
		time.go#L31: 	return value.UTC().Format(dateTimeFormatOutput)