hello.. im making a class scheduling program for teachers wherein the teacher will
choose the subject loads.. my problem now is i want to avoid the conflicting of time..
example.. the teacher has a class of 7am - 8am in section a.. that teacher cannot choose a
class with a time of 730am - 830am in other section.. how to do that?

how to do that

Save the times somewhere and compare them for overlaps.

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