The wt leaders don't use mathematics but they do use math-magic! They have used magic formulas to calculate events that are based on mythical starting dates while employing the Hebrew calendar year of 360 days and magically converting to the Gregorian calendar of 365 1/4 days. It requires a lot of mental gymnastics but if you do the math, using wt colored glasses, you will arrive at whatever date needed! It's simply magic!
just saying!