Do your work enforce a 1 hour lunch break?

[StonwEd]

Just as the title says?
I want to take a half hour instead and just wondering if it can be enforced or whether this is a reasonable request before I ask!
For context, the industry i work in is not a 9-5.30 type thing and I regularly work at the weekend and take the time back in the week.
Id just like to finish half an hour earlier really.

Well, that's your choice. You're not getting paid for your lunch break, so if you decide to work through it (I do, at times, too) you are giving your own free time to work

Legally everyone is entitled to a lunch break, usually unpaid.