In your Skype profile (Skype -> Profile -> Edit Profile), you need to have no year selected. This basically means that when you are selecting your birth year you want it to be the blank field at the very top of the drop down list.
Skype will not let you select this directly, so if you click the uppermost year (from memory it is 1900) and then press the up arrow on your keyboard it will select the blank field.
When done correctly, the profile will look like this:
![Skype Profile Screenshot, no year selected.](../../I/static/images/4ad6683a93db46ac016581d2f82b9bc34ee12ee76a6b333e53ff213a5cd9966b.png)
Edit to expand answer:
It is also possible to edit your profile through the Skype Website.
Sign into the site (same password as what you use to log into the application) and under "Account Details" choose "Profile".
Hit the Edit button, make your changes and click save (why doesn't the Application have this?"
![Skype website profile](../../I/static/images/7dde9db6d7bda8664cdfe86be05d0fdde30098766bd1b3784e32a66a717d7307.png)
Log back into the app and your changes should be reflected there.
2It is not possible anymore as of 30 December 2014 – Raymond Chenon – 2014-12-30T11:20:19.307
I've done that, but the change is never saved. To save, I leave the profile page. Is there another way to save the profile? Have you successfully saved a birth date with no year? As you exit Skype and come back does the year remain blank? Not with me... – John Assymptoth – 2013-03-10T21:36:48.267
1@JohnAssymptoth, In an older version of Skype if would save my Birth Date without a year, in the latest version is is deleting my entire birth date when I remove the year. Either way it was saving it. – Windos – 2013-03-10T22:38:31.897
@JohnAssymptoth, I have expanded the answer. – Windos – 2013-03-10T22:47:33.680
1I had tried that as well.If I don't input the year, it doesn't let me save. :-/ Maybe you enrolled in Skype in a different time than I did, making the rules differ... Don't know. Either way, I can not input a blank year (while inputting a non blank month/day) – John Assymptoth – 2013-03-10T23:22:52.767