Ion-datetime not displaying 00:00 hourValues in ionic 4

Ionic Framework ionic-v3
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From
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Quelle est votre code html du ion datetime?

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<ion-item no-padding [disabled]="!saturday">
                    <ion-label>From</ion-label>
                    <ion-datetime color="secondary" displayFormat="HH:mm" id="temp_saturday_open_time" name="temp_saturday_open_time"
                      [(ngModel)]="temp_saturday_open_time" (ionChange)="saturdayOpenTime($event);"></ion-datetime>
                  </ion-item>
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Et vous avez quoi comme affichage?

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If I select 00:00 from ion-datetime then it is not displaying, and if I select 00:01 it works

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