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Shazan February 2016
### Multiple a time with a number using javascript

can someone help with my code. I would like to multiply a number such as 20 with a time e.g. 35:00. I need this to work out the total cost per employee based on how much they have worked a week. I have just multiplied the two fields containing these values to see if it works, but it doesn't. Here is the code

```
var total = util.printd("timeDiff") * ("Total_Cost");
this.getField("Total_Cost").value = total;
```

Thank you

divelner February 2016

You need to take the time and parse it.

Then you need to calculate each part seperate.

```
var timeArr = util.printd("timeDiff").split(':');
var total = Total_Cost;
var hours = timeArr[0] * total;
var minutes = timeArr[1] * total;
this.getField("Total_Cost").value = hours + ':' + minutes;
```

Nina Scholz February 2016

The time must be splitted and reassambled with the correct time value. The result is cost total.

```
var timeDiff = '35:20',
costPerHour = 20,
total;
function getDecimalTime(s) {
var p = s.split(':');
return +p[0] + +p[1] / 60;
}
total = getDecimalTime(timeDiff) * costPerHour;
document.write(total);
```

Asked in February 2016

Viewed 2,598 times

Voted 6

Answered 2 times

Viewed 2,598 times

Voted 6

Answered 2 times