Ion-datetime picker couldn't start at min

Hi, I am using the datetime as a number picker for my pax value. everything works okay, but the picker always starts at max. I need it to start at min. Any help on this?

      <ion-datetime displayFormat="m People" [(ngModel)]="myPax"
       [min]='0:01' [max]='0:15' placeholder='2 People' [hourValues]='1'></ion-datetime>

Capture