View Source GoogleApi.Retail.V2.Model.GoogleTypeDate (google_api_retail v0.3.0)
Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: A full date, with non-zero year, month, and day values A month and day value, with a zero year, such as an anniversary A year on its own, with zero month and day values A year and month value, with a zero day, such as a credit card expiration date Related types are google.type.TimeOfDay and
nil) - Day of a month. Must be from 1 to 31 and valid for the year and month, or 0 to specify a year by itself or a year and month where the day isn't significant.
nil) - Month of a year. Must be from 1 to 12, or 0 to specify a year without a month and day.
nil) - Year of the date. Must be from 1 to 9999, or 0 to specify a date without a year.