The following applies to birthdays or birthdates that are collected through the double opt-in process, which you can read about here.
Acceptable Birthday Formats
Birthdays must be a valid day, therefore Tatango won't accept something like November 45.
Birthdays only need to include a month and a day, with the year being optional. If the year is submitted with the birthday, it will be ignored.
Birthdays need to be submitted in the order of month, then day - ex. "MM/DD".
Birthdays can have spaces, or no spaces - ex. "Jan2" or "Jan 2".
Birthdays can have leading zeros, or no leading zeros - ex. "3/1” or "03/01".
Birthdays can be the full or abbreviated month, with or without a period included - ex. "Nov 4", "Nov. 4", "November 4".
The month and day can be seperated by either a '-' or '/' - ex. "3/10" or "3-10".
Leap day (Feb. 29) is always considered a valid birthday.
A birthday can be anywhere in the response - ex. "My birthday is 05/10" or "05/10 is my birthday".
Examples of valid birthdays include:
January 2
January 02
Jan 2
Jan 02
Jan. 2
Jan. 02
Jan2
Jan02
1/2
01/2
01/02
1-2
01-2
01-02
Acceptable Birthdate Formats
Birthdates must be a valid day (leap years are taken into account), therefore Tatango won't accept something like November 45, 1984.
Birthdates need to include a month, day, and a year.
Birthdates can be submitted in two different orders, either "DD/MM/YYYY" or "YYYY/MM/DD".
A year can be submitted as 4 digits ("1985") or 2 digits ("85"). It is important to note that allowing a 2-digit year involves some guess work to figure out the 4-digit year. We assume that the birth date is in the past as it is unlikely that someone who has not yet been born will be texting in. If we are provided with a 2-digit year (ex. “19”) that is greater than the current 2-digit year (ex. “16” for “2016”), we assume the subscriber means the previous century (ex. “1919”). If the 2-digit year (ex. “01”) is less than the current 2-digit year (ex. “16” for “2016”), we assume the subscriber means the current century (ex. “2001”).
A comma is not required between either the month and day, or the day and year - ex. "Feb 29 04".
A birthdate can be anywhere in the response - ex. "My birthdate is 05/10/84" or "05/10/84 is my birthdate".
Examples of valid birthdates include:
January 1, 1984
January 01,1984
January 1, 84
January 01, 84
January 1 84
January 01 84
Jan 1,1984
Jan 01,1984
Jan 1,1984
Jan 01,1984
Jan 1 84
Jan 01 84
Jan1 84
Jan01 84
Jan 01, 84
Jan 1, 84
1/1/84
01/1/84
01/01/84
01/01/1984
1-1-84
01-1-84
01-01-84
01-01-1984