the matchmaker come at 10:30am, 11:30am and 7:00pm when ur tama is 6 yrs old. u can wait for this to happen; or set ur time for one minute before those times I said and wait one minute. Hope I helped
The matchmaker visiting times are 10:30 AM, 3:00 PM, and 7:00 PM. She will visit at these times for three days, begining a couple of days after your Tamagotchi becomes an adult (which should be about age 3 for a V4)