* Country: School starting ages and dates differ significantly across the globe.
* State/Province: Even within a country, individual states or provinces may have different regulations.
* Specific School: Private schools often have their own calendars, independent of public school systems.
* Grade Level: Kindergarten typically starts later than other grades.
To find out when school starts in a specific location, you'll need to specify the country, state/province, and sometimes even the specific school district.