try actually waiting for it. maybe it won't be old enough when you make to a certain time (because when you change the time it WON'T be older) and besides, it'll probably come today. and remember, DON'T CHANGE THE TIME! IT WON'T WORK!
If your tama is old enough, changing the time does work, I do it all the time. If your tama isn't old enough for the matchmaker, changing the time does nothing.
JUST WAIT IT WILL COME I WAS DESPERATE YESTURDAY AND THE DAY B4 MINE WAS 6 AND IT CAME LAST NIGHT HOWEVER I WORKED OUT THE MATCH MAKER TIMES FOR THE V3 THERE NOT THE SAME THERE
10:30 [same] 1:30 AND 6:00!! THIS IS MINE THOUGH IT CHANGES FROM CHARECTER TO CARECTER!