Second version, now i'm using linear equations(year, hour, minute, day
of year) to calculate the date back from a long value. I added a method
to calculate the floored mod and some constants. Now the code is with
less redundant fors, reducing the useless calculations.
I think that is possible solve the nonlinear equations of the data(day
of month and month of year) using a regression method, but i didn't
thought about how to do