Break times also tend to be regulated in most countries I believe. I.e. here in Japan 60 minutes break time is required if you work for more than I think about 6ish hours.

When I used to work in Japan I hated that rule. One day I feeling not so great, so I took the morning off. But we had an important release, so I still went to the office in the afternoon. The release ran into few issues, so I had to stay past the regular finish time of 6pm. I started to feel no so great again, so I wanted to finish the release and head home as soon as possible. But at 7pm, my boss came running towards me and forced me to take one hour break. I tried to explained to them (unsuccessfully) I only have about 5-10mins to finish the release. So I spent another one hour with watering eyes, massive headache, and chills, just to finish 5mins of work.

I mean, it's a sensible regulation but there should be some leeway for edge case situations like yours (if there aren't already - since you were actually sick that should make it OK for you to leave ASAP one would hope)

it easily does- 20-30 min to walk/bike/drive back and forth to cafe / restaurant- 5-10 min to order/get food, 15-20 min to eat.