I collect Date and Time by DatePicker and Dropdowns:

When I save this to a SharePoint list:
Set(var_occurence;DateTimeValue(DatePicker2.SelectedDate +
Time(Value(drpHour.Selected.Value);Value(drpMinute.Selected.Value);0)));;
Patch(Oktatas_alkalom;Defaults(Oktatas_alkalom);{Title:"Teszt";Oktatas_azonosito:cbbEducation_3.Selected.'AzonosÃtó ({Identifier})';IdÅ‘pont:var_occurence});;
I have a total different result:

Do you have any idea, what can cause this issue; how to solve this?
Thank you, Ervin