How to convert working hours to working days?

Question

I want to display a number of hours in days and hours as a human readable string but I need that 1 day be equal to 7 hours, so a working day.

I found this solution, but based on 1 day equal to 24 hours :

function secondsToTime($seconds) {
    $dtF = new \DateTime('@0');
    $dtT = new \DateTime("@$seconds");
    return $dtF->diff($dtT)->format('%a days, %h hours, %i minutes and %s seconds');
}

source: Convert seconds into days, hours, minutes and seconds

DateTime won't help you as it assumes the day is between 23 and 25 hours long. You probably need to do your own thing. — apokryfos, Sep 05 '16 at 13:36

score 4 · Accepted Answer · answered Sep 05 '16 at 13:41

4

DateTime won't help here. You need to count it on your own.

But this is simple math. Integer division for days and modulo for hours.

$hours = 12345;

$days = floor($hours/7);
$restHours = $hours%7;

echo "{$days} days, {$restHours} hours"; //1763 days, 4 hours

answered Sep 05 '16 at 13:41

Jakub Matczak

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Also basic match to get from seconds to hours. – Jonnix Sep 05 '16 at 13:42
1

@JonStirling yes, but OP wrote `display a number of hours in days and hours`, so I assumed hours are input data although his funciton probably takes time in seconds as argument. – Jakub Matczak Sep 05 '16 at 13:44
1

Thank you, I imagine that it was a problem of math but I could not do this simple calculation. I always forgot the use of modulo. – abenevaut Sep 06 '16 at 07:02

apokryfos · Answer 2 · 2016-09-05T13:49:42.113

Custom made code to deal with this (probably on of 1000 ways on can implement this, I don't claim this to be the best, or good or anything like that).

function secondsToTime($seconds) {
        $totalMinutes = intval($seconds / 60);
        $totalHours = intval($totalMinutes / 60);
        $totalDays = intval($totalHours / 7);
        echo "$totalDays days and ".($totalHours%7)." hours ".($totalMinutes%60)." minutes and ".($seconds%60)." seconds";             
}

e.g.

secondsToTime(8*60*60);

prints

1 days and 1 hours 0 minutes and 0 seconds

How to convert working hours to working days?

2 Answers2