Rules on Computation of Penalties:
1. When the offender is in prison – the duration of the temporary
penalties (Permanent Absolute Disqualification, Temporary
Absolute Disqualification, detention, suspension) is from
the day on which the judgment of conviction becomes final.
2. When the offender is not in prison – the duration of the
penalty of deprivation of liberty is from the day that the
offender is placed at the disposal of judicial authorities
for the enforcement of the penalty
3. The duration of the other penalties – the duration is from
the day on w/c the offender commences to serve his sentence
Reason for rule (a) – Under Art 24, the arrest and temporary
detention of the accused is not considered a penalty.
If in custody, the accused appealed, the service of the
sentence should commence from the date of the promulgation
of the decision of the appellate court, not the trial court.
Service in prison begins only on the day the judgment of
conviction becomes final.
In cases of temporary penalties, and if the offender is under
detention (as when undergoing preventive imprisonment), rule
If he is not under detention (released on bail), rule
If offender is under preventive imprisonment, rule (c)
applies, not rule (a).
The offender is entitled to a deduction of the full time or
4/5 of the time of his detention.