$start_time = #משעה#;
$end_time = #עד שעה#;

// Convert the start and end times to timestamps
$start_timestamp = strtotime($start_time);
$end_timestamp = strtotime($end_time);

// Calculate the difference in seconds between the start and end times
$time_diff_seconds = $end_timestamp – $start_timestamp;

// Convert the difference in seconds to hours
$time_diff_hours = floor($time_diff_seconds / 3600);

return $time_diff_hours;