Alaska Statutes

Alaska Stat. § 33.20.010 (2026)

Computation of good time

✓ current as of July 2026

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Sec. 33.20.010. Computation of good time.
(a) Notwithstanding AS 12.55.125(f)(3) and 12.55.125(g)(3), a prisoner convicted of an offense against the state or a political subdivision of the state and sentenced to a term of imprisonment that exceeds three days is entitled to a deduction of one-third of the term of imprisonment rounded off to the nearest day if the prisoner follows the rules of the correctional facility in which the prisoner is confined. A prisoner is not eligible for a good time deduction if the prisoner has been sentenced
     (1) to a mandatory 99-year term of imprisonment under AS 12.55.125(a) after June 27, 1996;

     (2) to a definite term under AS 12.55.125(l);

     (3) for a sexual felony under AS 12.55.125(i)
          (A) and has one or more prior sexual felony convictions as determined under AS 12.55.145(a)(4); or

          (B) that is an unclassified or a class A felony; or

     (4) for an unclassified felony under AS 11.41.100 or 11.41.110.

(b) [Repealed, § 15 ch 7 SLA 1996.]
(c) A prisoner may not be awarded a good time deduction under (a) of this section for any period spent in a treatment program, in a private residence, or on electronic monitoring.

Notes of Decisions

Cited in 60 cases (7 in the last 5 years), 1975–2025 · leading case: Hayward v. Marshall, 603 F.3d 546 (9th Cir. 2010).

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Hayward v. Marshall, 603 F.3d 546 (9th Cir. 2010). · cites it 4× “§§ 21-4706 , -4722; La.Rev. Stat. Ann. § 15:571.3; Md.”

Ewing v. California, 538 U.S. 11 (2003). · cites it 2× “, Alaska Stat. § 33.20.010 (a) (2000); Conn.”

State v. McCallion, 875 P.2d 93 (Alaska Ct. App. 1994). · cites it 17× “1 Thus, the only issue is whether the Alaska legislature intended to adopt the block computation method when it enacted AS 33.20.010 in 1960. We find that it did.”

State v. Bourdon, 193 P.3d 1209 (Alaska Ct. App. 2008). · cites it 16× “The Alaska statute governing good time credit, AS 33.20.010, declares that every defendant convicted of an offense under state law is entitled to a credit against their term of imprisonment equaling one day for every three days that they "follow[] the rules of the correctional…”

Forster v. State, 236 P.3d 1157 (Alaska Ct. App. 2010). · cites it 5× “1996) (emphasis added) (quoting AS 33.20.010(a)). 68 . State v. McCallion, 875 P.”

Murphy v. City of Wrangell, 763 P.2d 229 (Alaska 1988). · cites it 8× “3 After serving his full sentence, Murphy filed the instant lawsuit against the City of Wrangell and Police Chief William Klein, alleging that he was entitled to a “good time” reduction in his sentence under AS 33.20.010. 4 He seeks compensatory damages for lost wages as well as…”

Doe v. State, 189 P.3d 999 (Alaska 2008). · cites it 2× “In December 1990 Doe completed serving the unsuspended portion of his sentence less a good-time reduction required by AS 33.20.010(2) and was released to mandatory parole and supervised probation.”

Hampel v. State, 911 P.2d 517 (Alaska Ct. App. 1996). · cites it 10× “090(c) (“The unenhanced sentence or the initial presumptive sentence is considered served for purposes of discretionary parole on the date the unenhanced or initial presumptive sentence is due to expire less good time earned under AS 33.20.010.”) 4 Absent comparably clear…”

Helton v. State, 778 P.2d 1156 (Alaska Ct. App. 1989). · cites it 8× “Under AS 33.20.010, inmates in Alaska’s correctional system earn “good-time” credit for complying with institutional rules.”

Jackson v. State, 31 P.3d 105 (Alaska Ct. App. 2001). · cites it 4× “Under AS 33.20.010, any inmate sentenced to more than 3 days of imprisonment receives good-time credit equal to one-third of that sentence.”

Rocky N. Seaman v. State of Alaska, 499 P.3d 1028 (Alaska Ct. App. 2021). · cites it 7× “085(b) states: Good time credited under AS 33.20.010 does not reduce the term of imprisonment to be served before a prisoner is eligible for discretionary parole, except as provided for in AS 33.”

Briggs v. Donnelly, 828 P.2d 1207 (Alaska Ct. App. 1992). · cites it 7× “This appeal concerns the interpretation of AS 33.20.010 and AS 33.20.050, which are statutes that regulate the award of and forfeiture of “good time” for prisoners.”

Show all 60 citing cases →

— Alaska Stat. § 33.20.010(2) — 2 cases

Doe v. State, 189 P.3d 999 (Alaska 2008). “In December 1990 Doe completed serving the unsuspended portion of his sentence less a good-time reduction required by AS 33.20.010(2) and was released to mandatory parole and supervised probation.”

Malloy v. State, 153 P.3d 1003 (Alaska Ct. App. 2007).

— Alaska Stat. § 33.20.010(a) — 28 cases

State v. Bourdon, 193 P.3d 1209 (Alaska Ct. App. 2008). “The Alaska statute governing good time credit, AS 33.20.010, declares that every defendant convicted of an offense under state law is entitled to a credit against their term of imprisonment equaling one day for every three days that they "follow[] the rules of the correctional…”

Hampel v. State, 911 P.2d 517 (Alaska Ct. App. 1996). “090(c) (“The unenhanced sentence or the initial presumptive sentence is considered served for purposes of discretionary parole on the date the unenhanced or initial presumptive sentence is due to expire less good time earned under AS 33.20.010.”) 4 Absent comparably clear…”

Doe v. State, 189 P.3d 999 (Alaska 2008). “In December 1990 Doe completed serving the unsuspended portion of his sentence less a good-time reduction required by AS 33.20.010(2) and was released to mandatory parole and supervised probation.”

Jackson v. State, 31 P.3d 105 (Alaska Ct. App. 2001). “Under AS 33.20.010, any inmate sentenced to more than 3 days of imprisonment receives good-time credit equal to one-third of that sentence.”

Malloy v. State, 153 P.3d 1003 (Alaska Ct. App. 2007).

— Alaska Stat. § 33.20.010(a)(1) — 4 cases

Forster v. State, 236 P.3d 1157 (Alaska Ct. App. 2010). “1996) (emphasis added) (quoting AS 33.20.010(a)). 68 . State v. McCallion, 875 P.”

Nathanial L. Kangas v. State of Alaska, 463 P.3d 189 (Alaska Ct. App. 2020).

Rocky N. Seaman v. State of Alaska, 499 P.3d 1028 (Alaska Ct. App. 2021). “085(b) states: Good time credited under AS 33.20.010 does not reduce the term of imprisonment to be served before a prisoner is eligible for discretionary parole, except as provided for in AS 33.”

Jacob Roller v. State of Alaska, 539 P.3d 518 (Alaska Ct. App. 2023).

— Alaska Stat. § 33.20.010(a)(2) — 2 cases

Forster v. State, 236 P.3d 1157 (Alaska Ct. App. 2010). “1996) (emphasis added) (quoting AS 33.20.010(a)). 68 . State v. McCallion, 875 P.”

Xeuy Sikeo v. State, 258 P.3d 906 (Alaska Ct. App. 2011).

— Alaska Stat. § 33.20.010(a)(3) — 2 cases

Xeuy Sikeo v. State, 258 P.3d 906 (Alaska Ct. App. 2011).

Ferguson v. State, 242 P.3d 1042 (Alaska Ct. App. 2010).

— Alaska Stat. § 33.20.010(a)(3)(B) — 1 case

Mark Wayne King v. State of Alaska, 487 P.3d 242 (Alaska Ct. App. 2021).

— Alaska Stat. § 33.20.010(a)(4) — 2 cases

Winona M. Fletcher v. State of Alaska (Alaska Ct. App. 2023).

Winona M. Fletcher v. State of Alaska (Alaska Ct. App. 2023).

— Alaska Stat. § 33.20.010(c) — 1 case

Diaz v. State, Dep't of Corr., 239 P.3d 723 (Alaska 2010).

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