¶1Having pled guilty to driving under the influence, James Hutch-ins was sentenced to 12 months in the county jail, “[pjrovided, that after the service of 180 days in confinement, the balance shall be probated.” The sheriff awarded him 60 days credit for good time and released him following 120 days confinement. After serving probation for 185 days, Hutchins moved to have his sentence terminated, which the court denied on the ground that the 60 days of “good-time” credit had to be served on probation. The question on appeal is whether a sentence which orders a defendant to serve part of the sentence in jail with the balance probated can require that “good-time” credit resulting in an early release from confinement be served on probation. We hold it cannot and reverse.
¶21. The State’s complaints about the imprecise wording of Hutch-ins’ enumeration of error are without merit.
¶32. Johns v. State
¶4*262OCGA § 42-4-7 (b) (3) employs almost identical language: “An inmate sentenced to confinement as a county inmate shall be released at the expiration of his or her sentence less the time deducted for good-time allowances.”
¶53. In the same ruling the court stated that the start date of the sentence was July 7, 1998. But since the State stipulated that as of October 10, 1998, Hutchins had served 120 days of the 180 days sentenced, the start date necessarily was no later than June 12, 1998. The period of confinement was served as of October 10, and the 185 days of lawful probation expired on April 13,1999, the day before the filing of Hutchins’ motion to terminate. Thus, the motion to terminate should have been granted.
¶6Judgment reversed.
¶7 Cf. Felix v. State, 271 Ga. 534, 539-540 (523 SE2d 1) (1999).
¶8160 Ga. App. 535 (287 SE2d 617) (1981).
¶9Johns used the terms “good time” and “earned time” interchangeably. Id. at 536.
¶11 Id.; see Stephens v. State, 207 Ga. App. 645, 647-648 (2) (428 SE2d 661) (1993).
¶12Johns, supra,160 Ga. App. at 537; see Davis v. State, 181 Ga. App. 498 (1) (353 SE2d *2627) (1987) (court could not withhold good-time credit on grounds fines were unpaid).
¶13 OCGA § 42-4-7 (b) (1) expressly authorizes a county sheriff to award good-time allowances based on institutional behavior.
¶14 Cf. Bldg. Auth. of Fulton County v. State of Ga., 253 Ga. 242, 247 (5) (321 SE2d 97) (1984) (separation of powers clause applies to state and not counties); see generally Ga. Const, of 1983, Art. I, Sec. II, Par. III.