Average calculation of workhours - notice

[Imight]

Hello,

I am trying to make a formula that lets me know when an employee needs to have time off (by law there is a maximum amount of hours they can work in an eight week work period).

There are different values for different shifts:

Day: 9 hours
Evening: 9 hours
Night: 7,5 hours
Free: 0 hours

After working an eight week period (48 days that are not "free"), they need to go home.

They do not necessarily need to take an entire week off, but can have long weekends to keep the average legal.

 

[oldbrewer]

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[TD="colspan: 2"]Day: 9 hours[/TD]
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[TD="colspan: 2"]Evening: 9 hours[/TD]
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[TD="colspan: 9"]for simplicity let us say the linit is 100 hours in any 14 days[/TD]
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[TD="colspan: 2"]Night: 7,5 hours[/TD]
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[TD="colspan: 2"]Free: 0 hours[/TD]
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[TD]day1[/TD]
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[TD]day9[/TD]
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[TD]day11[/TD]
[TD]day12[/TD]
[TD]day13[/TD]
[TD]day14[/TD]
[TD]day15[/TD]
[TD]day16[/TD]
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[TD]day18[/TD]
[TD]day19[/TD]
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[TD]day21[/TD]
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[TD]day[/TD]
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[TD]evening[/TD]
[TD]evening[/TD]
[TD]evening[/TD]
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[TD]day16[/TD]
[TD]night[/TD]
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[TD="align: right"]27[/TD]
[TD="align: right"]18[/TD]
[TD="align: right"]9[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]0[/TD]
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[TD]evening[/TD]
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[TD="align: right"]72[/TD]
[TD="align: right"]81[/TD]
[TD="align: right"]81[/TD]
[TD="align: right"]81[/TD]
[TD="align: right"]72[/TD]
[TD="align: right"]72[/TD]
[TD="align: right"]72[/TD]
[TD="align: right"]72[/TD]
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[TD]night[/TD]
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[TD]total[/TD]
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[TD="align: right"]99[/TD]
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[TD="align: right"]90[/TD]
[TD="align: right"]90[/TD]
[TD="align: right"]90[/TD]
[TD="align: right"]99[/TD]
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[TD="colspan: 12"]so on day 19 with a rolling average of 99 hours employee cannot work on day 20[/TD]
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