Laravel / PHP / Carbon - Round time to the nearest X minutes.

TimeHelper.php

<?php

namespace App\Helpers;

use Carbon\Carbon;

class TimeHelper
{

    public static function round($time = null, $nearestMinutes = 15)
    {
        try {
            $time = Carbon::parse($time);
            $minutes = $time->minute;
            $minutes = $minutes % $nearestMinutes;
            if ($minutes < ($nearestMinutes / 2)) {
                $time->subMinutes($minutes);
            } else {
                $time->addMinutes($nearestMinutes - $minutes);
            }
            return $time;
        } catch (\Exception $e) {
            return null;
        }
    }


    public static function roundUp($time = null, $nearestMinutes = 15)
    {
        try {
            $time = Carbon::parse($time);
            $minutes = $time->minute;
            $minutes = $minutes % $nearestMinutes;
            if ($minutes > 0) $time->addMinutes($nearestMinutes - $minutes);
            return $time;
        } catch (\Exception $e) {
            return null;
        }

    }

}