$calendarField = “10/11/2024 18:00 – 10/11/2024 22:00″;

// Extract the start and end dates from the calendar field
$startEndDates = explode(” – “, $calendarField);
$startDate = strtotime($startEndDates[0]);
$endDate = strtotime($startEndDates[1]);

// Calculate the difference in hours between the start and end dates
$timeDiffHours = round(($endDate – $startDate) / (60 * 60), 2);

return $timeDiffHours;