Mask option: date?

[John Doe]

Charset 1: 0123
Charset 2: 01
Charset 3: 12
Charset 4: 90
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Mask: ?1?d?2?d - For DDMM Only
For example: 0712
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Mask: ?u?l?l?l?u?l?l?1?d?2?d - For AnyNameDDMM
For example: JohnDoe2709
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Mask: ?u?l?l?l?u?l?l?1?d?2?d?3?4?d?d - For AnyNameDDMMYYYY
For example: JohnDoe27091985 / JohnDoe15112001

Thanks for your reply. This is not an efficient solution though. It will also try dates (DDMM) like '3919'. There are only 366 possible options. This  means  brute forcing not ~9 bits (366 = 8.5 bits) but 12 bits, expanding the keyspace 8 times (2^(12-9)). This means that I need to buy 7 extra GPUs to make up the inefficiency of the mask  (please note that the crypto data that I'd like to crack consists of a date and way more, making cracking on 1 GPU impossible with current speeds).