Answers for "ion-select display format"

ion-select cancel text

<ion-select cancel-text="Cancelar">
	<ion-select-option *ngFor="let country of countries" value="{{ country.name }}">
		{{ country.name }}
	</ion-select-option>
</ion-select>

ion datetime interval 30 minutes

<ion-datetime displayFormat="HH:mm" [(ngModel)]="myDate" minuteValues="0,30">