Local Notification does not run at time IONIC 2

Ionic Framework ionic-v3
1

Below three notifications are not running with diff of 1 minute .

I received like

var d = new Date();
d.setSeconds(d.getSeconds() + 5);

this.localNotifications.schedule({
id: 1,
text: ‘Hi Test 1’,
at: d
});
d.setSeconds(d.getSeconds() + 5);
this.localNotifications.schedule({
id: 2,
text: ‘Hi Test 2’,
at: d
});
d.setSeconds(d.getSeconds() + 5);
this.localNotifications.schedule({
id: 3,
text: ‘Hi Test 3’,
at: d
});