Any regular employee serving in the Military Reserve Training or Emergency National
Guard service shall be entitled to 15 calendar days of military leave per year without
loss of pay, seniority, status, efficiency rating, vacation, sick leave or other benefits
for the time the employee is engaged in training or service ordered by the appropriate
military authority, provided that the employee who is on such military leave shall
turn over to the city any compensation excluding mileage or travel or meal allowances
received from the military for such services.