. (5) For reasons referred to in section 6, subsection 1 or section 7, a court may pass a conversion sentence that is shorter than what has been provided in this section, but nevertheless for at least four days. [section 5 has been amended by the Act of 731/2015, which enters into force on a date to be set by an Act. The amended wording is as follows:] [Section 5 - Duration of the conversion sentence (731/2015) (1) A conversion sentence for a fine is imposed so that four unpaid day fines correspond to imprisonment for one day. If the number of day fines to be converted is not divisible by four, the remainder are not converted. If only a part of a day fine has been paid, the day fine is deemed unpaid. (2) When passing a conversion sentence for a threat of a fine imposed as a lump sum in euros, every full 30 euros correspond to imprisonment for one day. (3) A conversion sentence shall be passed for at least five days and at most 40 days. A conversion sentence may not be passed without a special reason if the unpaid amount of the threat of fines is less than 120 euros. (4) If two or more fines are to be converted at the same time, only one conversion sentence shall be passed, in accordance with subsection 3. In this event, a threat of a fine corresponds to a fine. (5) On grounds provided in section 6, subsection 1 or section 7, a court may pass a conversion sentence that is shorter than what has been provided in this section, but nevertheless at least five days.] Section 6 - Waiver of conversion of a fine or a part of a fine (550/1999) (1) A court may waive a conversion sentence, if (1) the offence giving rise to the fine, taking into consideration its detrimental nature, is to be deemed petty when assessed as a whole, (2) the offence giving rise to the fine has been committed by a person below the age of 18 years, or (3) the conversion sentence is to be deemed unreasonable or pointless in view of the personal circumstances of the person fined, the other consequences of the offence to that person, the measures undertaken by the social welfare or health authorities, or other circumstances. (2) When passing a conversion sentence for a joint punishment of a fine, the court shall assess the proportion of the fines that are nor susceptible to conversion in the joint punishment and waive conversion for that part. (3) The part of the total amount of the fine that has been increased under section 3(2) or Chapter 7 section 3(a) shall not be converted into imprisonment. (755/2010) [subsection 3 has been amended by the Act of 755/2010 and enters into force on a date to be set by an Act. The earlier wording is as follows:]