Reporting error:  When selecting a date in profile (say, using this to pick date of birth) the selected day and displayed day is 1 day off.  I.E., selecting July 5 as the intended date of birth will always come up July 4 on the...

Hello, I am new (obviously by the question I am about to ask..)  Can someone help me understand how exactly to work Cron?  Stated that:  (NOTE: you need your cron jobs setup for this to work).. Please help. Sincerely,