Hi all

I have recently moved company and my new employer has a number of colleagues covering 24/7 managed services which I have never dealt with before.

The shift patterns were recently reviewed and the colleagues voted in favour of the DuPont Model - 14 x 12 hour shifts (inc. 1 hour break) in a 28 day cycle. 7 are day shifts and 7 are night shifts. My question is in relation to the fact that a night worker must not work more than an average of 8 hours in each 24 hours (calculated over a reference period of consecutive days or 2 months. How is the average calculated?  

Thanks

Aoife