You've always done things like observed the precise lunch hours (and not taken a single minute more)? This stuff is usually defined in contracts but at least for a professional job in a good workplace is subservient simply to getting the work done rather than literally doing your 7.3 hours of work and 0.7 hours of lunch to the letter. Even doing duties for your job that aren't listed as part of your contract is common. How common is working more than the contract specifies by just a few minutes? And so on. There's a reason Work to Rule strikes [1] are a thing.

[1] https://en.wikipedia.org/wiki/Work-to-rule

Are you working right now?