a third (school) district <called> a half-day

learnersuper

Banned
Chinese - Hong Kong
I don't quite understand the meaning of "call" in this article:

This first strike involved almost 3,000 educators across nine school districts, two of which had to cancel classes while a third district called a half-day.
Could it be an error? Would replacing "call" with "call for" be better?
 
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