A year has four seasons. The study on the calendar explains this further.
Today it is the equinox. Tomorrow starts the new season. Spring in the north or Autumn in the south. The next New Moon will bring in the first Scriptural month. This is 28 March 2017.
In my understanding you cannot start the new year before the previous year has been finalized and this is why I use the next New Moon AFTER the March equinox.
Until next time.