(40 ILCS 5/8-232) (from Ch. 108 1/2, par. 8-232)
    Sec. 8-232. Basis of service credit.
    (a) In computing the period of service of any employee for the minimum annuity under Section 8-138, the following provisions shall govern:
        (1) All periods prior to the effective date shall be
    
computed in accordance with the provisions of Section 8-226, except for a re-entrant or future entrant who was not in service on the day before the effective date.
        (2) Service subsequent to the day before the
    
effective date, shall include: the actual period of time the employee performs the duties of his position and makes required contributions or performs such duties and is given a city contribution for age and service annuity purposes; leaves of absence from duty, or vacation, for which an employee receives all or part of his salary; periods included under item (c) of Section 8-226; periods during which the employee is temporarily assigned to another position in the service and permitted to make contributions to the fund; periods during which the employee has had contributions for annuity purposes made for him in accordance with law while on military leave of absence during World War II; periods during which the employee receives disability benefit under this Article, or a temporary total disability benefit under the Workers' Compensation Act if the disability results from a condition commonly termed heart attack or stroke or any other condition falling within the broad field of coronary involvement or heart disease;
        (3) Service during 6 or more months in any year shall
    
constitute a year of service, and service of less than 6 months but at least 1 month in any year shall constitute a half year of service. However the right to have certain periods of time considered as service as stated in paragraph 2 of Section 8-168 or in Section 8-243 relating to service as Alderman shall not apply for minimum annuity purposes under Section 8-138 of this Article.
    (b) For all other purposes of this Article, the following schedule shall govern the computation of service of an employee whose salary or wages is on the basis stated, and any fractional part of a year of service shall be determined according to said schedule:
    Annual or Monthly basis: Service during 4 months in any 1 calendar year shall constitute a year of service.
    Weekly basis: Service during any week shall constitute a week of service and service during any 17 weeks in any 1 calendar year shall constitute a year of service.
    Daily basis: Service during any day shall constitute a day of service and service during 100 days in any 1 calendar year shall constitute a year of service.
    Hourly basis: Service during any hour shall constitute an hour of service and service during 700 hours in any 1 calendar year shall constitute a year of service.
(Source: P.A. 85-964; 86-1488.)