How many school days are there during a school year im different countries?

I think the 200 days in Australia is about right for a child in grade 4. However, I think it's too much for a younger child, and not enough for a student graduating high school. Ideally I think grade 1 students should only spend maybe 180 days (36 weeks) at school. It should then increase one week each year until grade 12, where they spend 240 days at school (48 weeks, the same number of days a full-time worker spends at work). The reason I think this is that I think there are probably better things a 6-year-old child should be doing with their time than sitting in a class room more days than not. I also don't agree that they should attend school for as many days (and in some states more) than a 17 year old—17 year olds should be getting prepared for the real world, and in the real world they don't get 12 weeks of holidays a year.

Most school districts in the U.S. adhere to a 180-day calendar.

In Panama we have 12 weeks of summer vacation and 2 weeks in the middle of the year. So 52-14=38 weeks , however on average due to holidays/ conflicts we attend 4 days of school a week. So something close to 152(this varies with circumstances) In Raleigh, where I live right now it's 180 days.

In Nepal students spends around 280 days in school and i think this should be lowered .