The pay for officers and enlisted men of the West Virginia state guard for service at camps of instruction, rifle practice, practice marches and maneuvers, or other duties ordered by the Governor, shall be such as are provided in the National Defense Act or amendments thereto. Officers and enlisted men, when employed in the actual service of the state, as defined and provided in this article, beginning on the day they assembled at their armories or other designated places, until the day they have returned thereto and been properly relieved, inclusive, fractional parts of a day counting as a full day, shall receive the same pay and allowances as provided for officers and enlisted men in the West Virginia National Guard.