I somehow thought that there is an uniform time of 90 days to visit without visa, but I see from your post that that differs. In some cases is half a year in some only 30 days. Interesting. You learn new things every day.
We learn every day be it a negative lesson or a positive lesson this how the human brain was programmed I'm humbled I was able to impart little knowledge to you, I've learned so many things on this platform most especially from @BADecker