Home Sources & methodology Sources & methodology Every OpenDay date comes from the law or an official calendar, and each one shows its source and verification label. We never use news sites, calculators or blogs as a source.
Last verified: October 16, 2026 Sources & methodology Found an error? Tell us
What the labels mean official Confirmed on the jurisdiction's own official calendar for that year (for example, the OPM calendar or the OATRH memo).computed Calculated from the statute or written policy, using its rules (for example, "third Monday in January").projected The list is set each year (for example, by a governor) and is not out yet, so we project it from recent official lists. Confirm it when the official list is published.Each source also shows its type: "official" when the document comes from the issuing government body, or "secondary copy" when it is a copy hosted elsewhere, used only when no official copy is online.
Last verified and yearly updates Last verified: October 16, 2026 (data from OpenDay API 0.8.0). The site shows 2026 and 2027. Each fall we add the next year: we review new official calendars (for example, the OATRH memo and state calendars), update the OpenDay engine and rebuild every page, which passes an automatic check of every date.
Found an error? Tell us at jbstudiotemplate@gmail.com. Include the region, year and holiday, and a link to the official source if you have one.
US federal Banks (Federal Reserve) Puerto Rico OATRH memos by year Puerto Rico toolkit States and DC Each state uses its own statute or official state-employee calendar. Verification by year:
State Sources 2026 2027 Alabama Ala. Code § 1-3-8 (legal holidays) secondary copy Retirement Systems of Alabama: state holidays official official computed Alaska AS 44.12.010 (legal holidays), as amended by SB 22 (33rd Legislature) official Alaska Department of Administration holiday calendar official official official Arizona A.R.S. 1-301 (holidays) official Ariz. Admin. Code R2-5A-B601 (employee holidays) secondary copy computed computed Arkansas Ark. Code Ann. § 1-5-101 (holidays) secondary copy Arkansas OPM Policy 52, Holidays and Birthday Leave official computed projected California Cal. Gov. Code § 19853 (state employee holidays) secondary copy Cal. Gov. Code § 6700 (legal holidays) official · no link yet CalHR state holidays official official computed Colorado C.R.S. 24-11-101 (legal holidays) secondary copy Colorado DHR Calendar Year 2026 Holiday Schedule official official projected Connecticut C.G.S. § 1-4 legal holidays (CT.gov summary) official official official Delaware 1 Del. C. § 501 (legal holidays) official official official District of Columbia DCHR Issuance I-2026-1, Legal Public Holidays official official projected Florida § 110.117, Fla. Stat. (paid holidays) official § 683.01, Fla. Stat. (legal holidays) official computed computed Georgia O.C.G.A. § 1-4-1 (public and legal holidays) secondary copy State of Georgia holiday schedule (2026 and 2027) official Georgia state holidays 2026 official official official Hawaii HRS 8-1 (state holidays) official Hawaii DHRD State Holidays 2026-2027 official official official Idaho Idaho Code 73-108 (holidays) official Idaho Secretary of State: state holidays official official official Illinois Illinois CMS state holidays official CMS state holidays memo (November 18, 2025) official Public Act 102-0014 (Juneteenth) official official official Indiana IC 1-1-9-1 (legal holidays) secondary copy Indiana SPD Holidays Policy official Indiana SPD state holidays official official official Iowa Iowa Code §§ 1C.1, 1C.2 (holidays) official computed computed Kansas K.S.A. 35-107 (legal public holidays) official K.A.R. 1-9-2 (holidays) secondary copy Kansas Department of Administration: holidays for 2026 official official projected Kentucky KRS 18A.190 (state employee holidays) secondary copy Kentucky Personnel Cabinet: leave and holidays official official computed Louisiana La. R.S. 1:55 (legal holidays) secondary copy Louisiana State Civil Service: Understanding State Holidays official Louisiana Public Service Commission 2026 holiday schedule official official projected Maine Maine BHR Policy & Practices Manual: Holidays (4 M.R.S. § 1051) official Maine BHR holiday schedule official official computed Maryland State Pers. & Pens. § 9-201 (Maryland Manual: state employee holidays) official Gen. Prov. § 1-111 (Maryland Manual: legal holidays) official Maryland DBM state holidays 2026 official official computed Massachusetts Secretary of the Commonwealth: Massachusetts legal holidays official official official Michigan State of Michigan state holidays official Michigan Civil Service Regulation 5.03 (holidays) official official computed Minnesota Minn. Stat. § 645.44 subd. 5 (holidays) official Minnesota Board of Accountancy: location and hours (2026 holidays) official official computed Mississippi Miss. Code Ann. § 3-3-7 (legal holidays) official 27 Miss. Code R. 120-3.1 (effective until 7/1/2025) secondary copy computed computed Missouri RSMo 9.010 (legal holidays) official Missouri 2026 state holiday closure memo (hosted by the Missouri courts) official official projected Montana MCA 1-1-216 (legal holidays) official Montana SHRD Holiday Policy official computed computed Nebraska Neb. Rev. Stat. § 25-2221 (quoted in the Judicial Branch personnel manual) official Neb. Admin. Code Title 273 ch. 9 § 003.01 secondary copy computed computed Nevada NRS 236.015 (legal holidays) official computed computed New Hampshire RSA 288:1, 288:2 (holidays) official NH DAS state holidays (names only) official computed computed New Jersey N.J.S.A. 36:1-1 (public holidays) secondary copy N.J.S.A. 36:1-1.2 (Saturday holidays for state employees) secondary copy computed computed New Mexico NMSA 12-5-2 (legal holidays) secondary copy SPO General Memorandum 2025-015 (2026 paid holiday schedule) official official projected New York N.Y. General Construction Law § 24 (public holidays) official · no link yet NYS Department of Civil Service legal holidays official official official North Carolina OSHR holiday policy official N.C. Gen. Stat. § 103-4 (legal holidays) official official official North Dakota NDCC ch. 1-03 (legal holidays) official ND Secretary of State: state office holiday closings official computed computed Ohio Ohio Rev. Code 124.19(A) (paid holidays) official Ohio Legislative Service Commission: state holidays official computed computed Oklahoma 25 O.S. § 82.1 (holidays) secondary copy OMES state holidays (Executive Orders 2025-14 and 2026-26) official official official Oregon ORS 187.010, 187.020 (legal holidays) official Oregon DAS 2026 Holiday Memo official official computed Pennsylvania Administrative Circular 25-13 (2026 holidays) official 44 P.S. § 11 (legal holidays) official · no link yet Banking Code of 1965 § 113 (2027 bank holiday letter) official official projected Rhode Island R.I. Gen. Laws § 25-1-1 (text quoted in H 7781, 2026) official official official South Carolina S.C. Code § 53-5-10 (legal holidays) official SC Department of Administration: holiday leave official official official South Dakota SDCL 1-5-1 (holidays) official SD BHR State Employee Handbook official SD Board of Regents: holidays official official official Tennessee Tennessee Department of Human Resources: state holidays official About Tennessee: state holidays official official computed Texas Tex. Gov't Code ch. 662 (holidays) official Texas State Auditor's Office holiday schedules official official computed Utah Utah 2026 S.B. 193 (Good Friday) official Utah 2026 H.B. 309 (Juneteenth) official Utah Division of Finance 2026 payroll calendar official official computed Vermont 1 V.S.A. § 371 (legal holidays) official Vermont DHR holiday schedule 2024-2026 (CBA) official Vermont Judiciary holiday schedule 2026/2027 official official computed Virginia Va. Code § 2.2-3300 (legal holidays) official DHRM Policy 4.25, Holidays official official official Washington RCW 1.16.050 (legal holidays), text reproduced in HB 2709 (2026) official Washington Department of Licensing 2026 holiday closures official computed computed West Virginia W. Va. Code § 2-2-1 (legal holidays) official computed computed Wisconsin Wisconsin DPM: state holidays official UW System policy citing Wis. Stat. § 230.35(4) and Wis. Admin. Code ER 18.04 official computed computed Wyoming W.S. 8-4-101 (legal holidays) secondary copy A&I personnel rule 006-6 Wyo. Code R. 6-4 secondary copy computed projected
How dates are calculated Each holiday's rule (fixed date, "third Monday", Easter, Hebrew calendar) comes from the law. Each calendar applies its own weekend rule; holidays that are not moved are marked as such. A business day is Monday to Friday, minus the observed holidays of the calendar. Dates confirmed by an official yearly calendar replace the rule where they differ, citing that calendar. About OpenDay API
Frequently asked questions Where do federal holidays come from? From 5 U.S.C. 6103. The rule that moves a Saturday holiday to Friday and a Sunday holiday to Monday comes from 5 U.S.C. 6103(b) and Executive Order 11582. We check each year against the OPM federal holidays calendar.
What are the official holiday sources for each state? Each state's own statute or official state-employee holiday calendar, listed in the table on this page with a link to every document.
Use this in your software OpenDay API is a paid API on Apify, billed per successful request. Payroll, banking, delivery and deadline apps use it for every US and Puerto Rico calendar, with sources in every response.
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