This is the first time the city is ONLY doing borough specific fairs and so how it’s all going to work is still to be seen. But, I’m assuming they will work the way borough specific fairs have worked in the past (there used to be one weekend of a city wide fair and one weekend of borough specific fairs up until this year).
The borough fairs take place at the same dates and times in all five boroughs. In the past, both Saturday and Sunday offerings took place in the same locations, one fair in each borough. This year we don’t know if both borough fair weekends will take place in the same place or if they’ll switch things up.
If you’re interested in schools in different boroughs, you might want to consider checking out the different fairs. At least, with 4 different dates per borough, you’ve got options.