How to change the date of birth?

May 4, 2009 1:19pm CST
I was in hurry when i was registering for and made a mistake. I was not a frequent user of mylot. So i didn't notice the error that time. When i checked now it is displayed my age as 29 years instead of 23. Can anybody tell me how to change the year? I was searching in mylot for more than half an hour. But i didn't find how to change the date of birth
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