How to rectify wrong hours mentioned in contract after discovering it 6 months onwards?

I been working with a company as a contractor for 6 months, now there is a new requirement to fill timesheet of "How many hours I spend in office", and fill in the previous (January) month as well. Turns out, my hours were wrongly mentioned in the contract as it said:

Total of 37.5 hours. Mon-Thu : 9-5:30 and Friday: 9am-3pm

If we do the maths, it is 40 hours. So technically, I was doing more hours for the last 6 months, the first contract was 3 months, then I signed a new contract.

I did raise this with my manager, as the CEO makes the contract he said he will talk to the CEO but what options do I have. Can I ask them to pay me overtime, or take those hours off by working less for the next few months? What if my CEO says it was a human mistake because everyone works from 9 - 5:30, and that you are getting paid for it?

What are my options?

• UK law says you get a lunchbreak for shifts 6 hours or more. 5x30 mins is 2.5 hours, making 37.5 hours a week. They probably assume that your contract entity is granting you these rights. Feb 21, 2019 at 10:00
• I do get 30 min break. but how u calculate? do you add break into hours? Can you explain more?
– user15704
Feb 21, 2019 at 10:02
• You are not paid for lunch. That makes it 37.5 hours. 8+8+8+8+5.5=37.5 Feb 21, 2019 at 10:03
• @JohnHC you should post it as an answer
– Ara
Feb 21, 2019 at 10:05

You are not paid for lunch. That makes it 37.5 hours.

``````Mon: 8.5 - 0.5 =  8
Tue: 8.5 - 0.5 =  8
Wed: 8.5 - 0.5 =  8
Thu: 8.5 - 0.5 =  8
Fri: 6   - 0.5 =  5.5
Total:           37.5
``````
• Ah, I never knew we don't get paid for lunch. so do one fill 3.7 hours in each day or 8?
– user15704
Feb 21, 2019 at 10:12
• @cookieMonster Fill in 8 hours Mo-Th, then 5.5 on Fri Feb 21, 2019 at 10:14
• Brilliant. Thanks, that maths was hurting my head.
– user15704
Feb 21, 2019 at 10:17
• @JohnHC: What to fill in very much depends from company to company. At my current client, that would be considered fraudulent behavior as I did not effectively work 8 hours Mon-Thu and the Jira ticket timestamps back that claim up. I'm aware it's a zero-sum-game when you bill weekly (or monthly) but that doesn't mean the client isn't a stickler for these things. Feb 21, 2019 at 10:18
• @Flater and they are always happy to pay for those 10 minutes extra when they need them after 17.30 etc Feb 21, 2019 at 11:29