Chinese astrology year(s) question

[Wolf]

To Whom it may concern I was playing around with the Chinese Astrology software and did my birthday which is: March 25th 1975, and when I saw the information it showed my birthday as: March 25, 1939 I was wondering if that would be right or if there was a mistake? I will appreciate any information you can give me. I am fairly new to Chinese Astrology. I will appreciate any information you can give. Thank you ahead of time.