Focus on timepicker instead of modal window - html

Question

My modal window is blocking my time picker on Angular
Component.ts
open() {
const amazingTimePicker = this.atp.open();
amazingTimePicker.afterClose().subscribe(time => {
console.log(time);
});
}
// Triggering the modal window
createApplication(content) {
this.modalService.open(content, {centered: true, size: 'lg'});
}
Modal html
<ng-template #create let-modal>
<div class="modal-header">
<h4 class="modal-title" id="modal-basic-title">Job Application</h4>
<button type="button" class="close" aria-label="Close" (click)="modal.dismiss('Cross click')">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<form #createApplicationForm="ngForm" (ngSubmit)="createApplicationForm.form.valid && createForm(createApplicationForm)" >
<div class="form-group">
<div class="input-group">
<input class="form-control" id="preferredContactDate" name="preferredContactDate"
[(ngModel)]="newApplicationFormDateModel" ngbDatepicker #preferredContactDate="ngbDatepicker">
<div class="input-group-append">
//Open time picker here
<button class="btn btn-secondary" (click)="open()"
type="button"></button>
</div>
</div>
</div>
<div class="modal-footer">
<!-- Submit button -->
<input class="btn btn-dark" type="submit" value="Create" />
<button type="button" class="btn btn-dark" (click)="modal.dismiss('Cross click')">Cancel</button>
</div>
</form>
</div>
</ng-template>
However, when i do this, the time picker gets blocked by the modal.
Any ideas?
Stackbliz for timepicker - https://stackblitz.com/edit/amazing-timepicker-example
Referenced to: https://www.npmjs.com/package/amazing-time-picker
Modal: https://ng-bootstrap.github.io/#/components/modal/examples
Update based on answer:
<div class="time-picker">
<input atp-time-picker value="19:00"/>
</div>
CSS
.time-picker {
position:absolute;
z-index : 99999999;
}
.my-custom-class{
z-index: 900;
}
I also tried inline style as well
<input style= "z-index: 99999999;" atp-time-picker value="19:00"/>

Answer 1

We need to get the bootstrap's z-index dynamically and increment it with some arbitrary number and set to the time-picket something like below:
$(document).on('show.bs.modal', '.modal', function (event) {
const zIndex = 1045 + (10 * $('.modal:visible').length);
// this zIndex can be assigned to the time-picker
$(this).css('z-index', zIndex);
setTimeout(function () {
$('.modal-backdrop').not('.modal-stack').css('z-index', zIndex - 1).addClass('modal-stack');
}, 0);
});

Answer 2

you can specify a custom class for the modal to overwrite the z-index.
example:
in your js/ts:
this.modalService.open(content, {backdropClass: 'my-custom-class'});
css:
.my-custom-class{
z-index: 900;
}

Answer 3

Your issue is similar to the one mentioned here : https://github.com/owsolutions/amazing-time-picker/issues/129
The proposed solution, as think win win explained, was to increase the timepicker's z-index :
time-picker {
position:absolute;
z-index : 99999999;
}