On

Art. 65. .

In  cases in which the penalty prescribed by law is not composed
of three periods, the  courts shall apply the rules contained
in the foregoing articles, dividing into three  equal portions
of time included in the penalty prescribed, and forming one period
of each of the three portions.

Computations:

Example: Prision Mayor (6 years, 1 day to 12 years)

1. subtract the minimum (disregard 1 day) from the maximum
   12 years – 6 years = 6 years

2. Divide the difference by 3. 6 years / 3 = 2 years

3. Use the minimum (6 years and 1 day) as the minimum of
   the minimum period. Then add the 2 years (disregarding the 1 day)
   to the minimum to get the maximum of the minimum period.

     6 years (minimum of the minimum)
   +
     2 years (difference)
   -------------------------------------------
     8 years (maximum of the minimum).

4. Use the maximum of the minimum period as the minimum of the
   medium period and add 1 day to distinguish from the minimum
   period. Then add 2 years to the minimum of the medium
   (disregarding the 1 day) to get the maximum of the medium period.

     8 years (minimum of the medium)
   +
     2 years (difference)
    ------------------------------------------
    10 years (maximum of the medium)

   Therefore, medium period of prision mayor = 8 years 1 day
   to 10 years

5. Use the maximum of the medium period as the minimum of the
   maximum pd, and add 1 day to distinguish it from the maximum
   of the medium period. Then add 2 years to the minimum of the
   maximum pd (disregarding the 1 day) to get the maximum of the
   maximum period)

     10 years (maximum of the medium)
   +
      2 years (difference)
    ----------------------------------------------
     12 years (maximum of the maximum)

   Therefore, maximum period of prision mayor = 10 years 1 day
   to 12 years

Computation above is applicable to all others except to arresto mayor.


Example: Prision Mayor minimum (6 years 1 day to 8 years) only
1. Subtract minimum from the maximum.
   8 years – 6 years = 2 years

2. Divide the difference by 3.
   2 years / 3 = 8 months

3. Use the minimum of the given example as the minimum period.
   Then to get to get the maximum of the minimum, add the 8 months.

   6 years + 8 months = 6 years and 8 months

   Therefore, minimum of prision mayor minimum = 6 years 1 day
   to 6 years 8 months

4. Use the maximum of the minimum as the minimum of the medium
   period. Add 1 day to distinguish it from the maximum of the
   minimum. Add the 8 months and this becomes the maximum of the
   medium

   6 years 8 months + 8 months = 7 years 4 months

   Therefore, the medium period of prision mayor minimum = 6
   years, 8 months 1 day to 7 years, 4 months

5. Use the maximum of the medium as the minimum period of the
   maximum period and add 1 day to distinguish. Add the 8 months
   to get the maximum of the maximum

   7 years 4, months + 8 months = 8 years

   Therefore, maximum of prision mayor = 7 years, 4 months,
   1 day to 8 years