How to add event listener on month change event in an ion-datetime object?

Question

If I use an ion-datetime object and select a date. I can retrieve the value of the selected date with the event: ionChange.

var element = document.getElementById('My-ION-DATETIME');
element.addEventListener('ionChange', function (event) {    
    
    console.log(JSON.stringify(event));
    console.log(JSON.stringify(event.detail));
    console.log(JSON.stringify(event.detail.value));
    
    var dateFormat = event.detail.value.split('T')[0];
    alert(dateFormat);

}, false);

On the other hand, if I change the month using the arrows < or > or if I slide the page to change the month, how can I trigger an event with the month value and the year value that is displayed after month change ?

Many thanks to anyone who can help me.