public long toEpochDay() {
        long y = year;
        long m = month;
        long total = 0;
        total += 365 * y;
        if (y >= 0) {
            total += (y + 3) / 4 - (y + 99) / 100 + (y + 399) / 400;
        } else {
            total -= y / -4 - y / -100 + y / -400;
        }
        total += ((367 * m - 362) / 12);
        total += day - 1;
        if (m > 2) {
            total--;
            if (isLeapYear() == false) {
                total--;            }
        }
        return total - DAYS_0000_TO_1970;
     }

It’s a method in class LocalDate. what does this expression mean: ((367 * m – 362) /12) ?

search online for the meaning of ‘((367 * m – 362) / 12)’, no answer.