holidays when one day is longer than the rest?

[Strix]

How do I work the holiday entitlement for an employee who works five days, but not the same number of hours on each day?

So when she takes a bank hol does that count as one day of hol? If she takes a Thurs. off, does that also count as one day of hol (even though Thursday is half the hours of Monday)?

Her hours are something like:

Monday: 12 hours
Tuesday: 6 hours
Wednesday: 8 hours
Thursday: 6 hours
Friday: 6 hours

An average I think?

where i work our holiday hours are allocated as to the days
so if we have a saturday morning off = 4 hours hols
if we have a monday off = 7.5 hours hols
wednesday - 7 hours etc etc
i think it would be fair to have paid holidays as per the number of hours she works in that day -

Work out her holiday entitlement in hours. Here

Then deduct holiday taken in hours.

So, for a 38 hour week it works out at 212.8 hours holiday per year.

for bank holidays she gets 20% of her weekly allowance (so 38/5=7.6 as bank holiday and the rest 4.4 s annual leave for a monday)

ok, so I just really think in hours rather than days. Seems easy enough. Hope I don't confuse the poor au pair.