set school year and change boolean to False when school year is not active

Hi Guys!! Hope Fully someone can help me any hint or answer really appreaciated..

ireally stuck here in a couple of days now.

My Problem is i want to set a school year using

start_year and end_year field then when school year end  this would automatically in_active

for example
start_year: 2019-01-01
end_year: 2020-01-01
active_year: True

then when 2020-01-01 ends

the boolean will automatically change the status to
active_year:False

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