The General Clauses Act, 1897
§9 — Commencement and termination of time
(1) In any [Central Act] or Regulation made after the commencement of this Act, it shall be sufficient, for the purpose of excluding the first in a series of days or any other period of time, to use the word “from”, and, for the purpose of including the last in a series of days or any other period of time, to use the word “to”. (2) This section applies also to all [Central Acts] made after the third day of January, 1868, and to all Regulations made on or after the fourteenth day of January, 1887.