I'm so confused & I don't know where to turn - my boss's holiday calculation doesn't tally with ACAS's verification of my calculations. My contract states that I get 25 days hol + 8 bank hols = 33 days holiday per year. Fine. This was based on full time working. I've now started work part time, 16 hours a week, rather than standard 40 hrs. Pro rata'd my holiday would be 16/40 hours x 100 = 40% of time worked. 33 days x 40% = 13.2 days holiday. BUT I only work mornings - 4 hours a day, for 4 days a week. So do I get 13.2 mornings leave per year = only 3 1/2 weeks holiday a year, or do I get 13.2 8 hour days, i.e. 26.4 half days, = almost 7 weeks a year, which was what I got when I worked full time. ACAS thought the latter, my boss thought the former, I very much hope ACAS were right. Please help, I'm losing sleep!