Carbon add hours issue - php

Question

I'm struggling to understand why Carbon addHours() is not returning the proper time.
This is what i have in my controller :
public function create(Request $request)
{
$locationId = $request->input('location_id');
$beginningDate = $request->input('beginning_date');
$beginningTime = $request->input('beginning_time');
// $beginningDate = $request->input('beginning_date')->format('d-m-Y');
// $beginningTime = $request->input('beginning_time')->format('H:m');
$duration = $request->input('duration');
$totalPrice=PriceList::where('duration_to_hours', $duration)->value('price');
$reservationStartingDate = $beginningDate. ','.$beginningTime;
$calculateReservationDates = Carbon::parse($reservationStartingDate)->addHours($duration);
$endDate= $calculateReservationDates->format('d-m-Y');
$endTime = $calculateReservationDates->format('H:m');
$reservedCount = Reservation::where('beginning_date', '>=', $endDate)
->where('end_date', '>=', $beginningDate )
->where('beginning_time', '<=', $endTime)
->where('end_time', '>=', $beginningTime)
->count();
$totalBoxes = Box::where('location_id', $locationId)->count();
dd($endDate, $endTime);
$available = false;
if($reservedCount < $totalBoxes){
$available = true;
}
return view('checkout', compact('locationId', 'totalPrice', 'endDate', 'endTime', 'beginningDate', 'beginningTime', 'duration', 'available'));
}
But if for example the beginning time is 10:50 am and the duration is one hour, based on my logic it should return the $endTime to be 11.50 but it's only returning 11.04.
I do not get what I'm missing, do you have any idea?
Thank you
UPDATE
Here's the dd() of $reservationStartingDate :
^ "2022-04-22,00:53"

Answer 1

I think the H:m is wrong it's should be like this
$endTime = $calculateReservationDates->format('H:i');
m is refer to month, not minute. For minute, use i.
I hope it's helpful

Answer 2

// Y - year
// m - month - not minutes
// d - day
// H - hours in 24h format default UTC
// i - minutes
// s - seconds
$beginningDate = '2022-04-07';
$beginningTime = '10:30'; // 24h format UTC
// "2022-04-07 10:30" - you need this format
$reservationStartingDate = "$beginningDate $beginningTime";
$result = Carbon::createFromFormat('Y-m-d H:i', $reservationStartingDate)->addHours(1);
Result with an hour added
Carbon\Carbon #1649331000 {#1724
date: 2022-04-07 11:30:00.0 UTC (+00:00),
}