How to calculate pro rata holidays hours for part time worker

Redpetal · 17 October 2019 at 8:07PM

I work 28 hours/week over 5 days with varying hours per day. I am trying to check what my holiday allowance should be in DAYS and also HOURS pro rata to a full time worker based on non stat holiday allowance as the company give us more than stat allowance:

FULL TIME WORKER
Full time staff working 40/week, 8 hour days, (with 1 hour paid lunch) get:
32 days leave (inclusive of bank holidays)
giving them 24 bookable days off (192 hours) + 8 bank holiday days non bookable as office is closed.

So what should a 28 hours worker get pro-rata to the above in DAYS and HOURS
I am specifically looking for the BOOKABLE days or hours that should I get? Everyone has to have the 8 days bank holidays off and this is kept off our bookable allowance.

On 28 hours my current contract gives me the following:
28 days leave (inclusive of bank holidays)
giving 20 bookable days off + 8 bank holiday days non bookable as office is closed.
Is this correct???

If so I then want to change my current 20 days bookable allowance into hours as I work varying shifts over 5 days.

Is this simply the case that I do 20 x 8 hours: 160 hours bookable hours, or is that too high a figure pro rata to the 192 bookable hours of FT workers (thus is 20 days correct in the first place?)

Maths is clearly not my strong point sorry, but to check, I tried the calculation as a percentage pro-rata on the F/T bookable hours of 192 and I get my hours when working 28/wk to 135 BOOKABLE hours, not 160.

40 hours a week: 24 days x 8 hours= 192 hours BOOKABLE allowance
28 hours a week as a percentage of 40 hours a week is 70%

70% of 192 hours is: 134.4 hours.

In short i just want to work out what is the official pro rata in DAYS and HOURS for a worker doing 28 hours when 40 hours workers get:

Full time staff working 40/week, 8 hour days, (with 1 hour paid lunch) get:
32 days leave (inclusive of bank holidays)
giving 24 bookable days off (192 hours) + 8 bank holiday days non bookable as office is closed.

Thanks so much!