Any way to set default value only for hour and minute?

[Miojo]

I need to show the current date on default, but change the default hour and minute so I can know if the user changed it or not...
Just like the first image on this repository, the hour and minute are "00" "00" and theres a date selected.

I tried setting :
<input [(ngModel)]="myDate"
hour = "00"
minute = "00"
ngui-datetime-picker
/>

but it didint work