Vdg
Is it not correct that working a 4on 4off pattern who actually only work 182.5 days a year, whereas the office worker works 261 days. 365 -(52 x 2)= 261
That being the case a shift worker on 12 hrs is actually only being paid for 11 hrs, as you are entitled to 1 hr lunch-break (don't all shout 'if only', that just not true in all cases).
So 182.5 x 11 = 2007.5
&
261 x 8 = 2088
So who works more hours?
Yes admittedly some company's only work 7.5hr days.
Then there's the leave.
Taking that shift workers have 20 days & office workers have 20 days who has more time off.
Shiftworker - taking into account days off either side of shifts / 4 days leave = 12 days off. 20 leave days = 5 sets of shifts.
5 x 12 = 60days off (now you actually work 122.5!!!)(or 1/3 of the year!!!!)
office worker - with weekends either side / 5 days leave = 9 days off.
20 leave days = 4 weeks.
4 x 9 = 36 + 8 BH = 44 days.
So they work 217 days.
It' a minefield - still want to slap this on the HR's desk?