What's open on King Kamehameha I Day 2027?
King Kamehameha I Day is a state holiday, next on Friday, June 11, 2027. Here is what is open and closed: post office, banks, stock market, government offices, schools and stores.
| Service | Status | Details |
|---|---|---|
| U.S. Post Office (USPS) | Open | Not a federal holiday; regular hours and mail delivery in Hawaii and nationwide. |
| Banks | Open | Banks follow the Federal Reserve calendar and stay open; a few local branches may adjust hours. |
| Stock market (NYSE, Nasdaq) | Open | Normal trading day. |
| Federal offices | Open | Federal agencies and federal courts in Hawaii keep regular hours. |
| State and local government | Varies | Closed across Hawaii, including state courts, DMV counters, libraries and county offices. No effect in other states. |
| Public schools | Varies | Hawaii public schools are normally on summer break; University of Hawaii campuses and school offices close. |
| Retail stores and malls | Open | Open; expect parade-day road closures in downtown Honolulu and Waikiki. |
| Restaurants and grocery stores | Open | Normal hours; busy around parade routes and festival sites. |
Why these close and others do not
Three separate rules decide what shuts on any given American holiday, and they do not always agree. The federal list in 5 U.S.C. § 6103 governs federal offices, federal courts and the U.S. Postal Service, and the Federal Reserve follows the same calendar — which is why banks close on federal holidays and stay open on state-only ones. State holiday statutes are separate: each state legislature sets its own list for state employees, courts, DMV offices and usually public schools, so a day can be a paid holiday in Texas and an ordinary Tuesday in Ohio. Private employers answer to neither - no federal law requires any private business to close or to pay a premium for holiday work, so retailers, restaurants and offices set their own policies, and most stay open with reduced hours on all but a handful of days.
King Kamehameha I Day is a state holiday, so only the second rule applies: offices close in the states that observe it, while federal offices, post offices and banks stay open. The stock market keeps its own calendar again: the New York Stock Exchange and Nasdaq close for nine of the eleven federal holidays plus Good Friday, but trade normally on Columbus Day and Veterans Day, when the bond market closes and the equity market does not.
Hours vary by location and year. Check with the branch or office before you go. For dates through 2027 and the history, see the main King Kamehameha I Day page.
Frequently asked questions
Is the post office open on King Kamehameha I Day?
Yes. Not a federal holiday; regular hours and mail delivery in Hawaii and nationwide.
Are banks open on King Kamehameha I Day?
Yes. Banks follow the Federal Reserve calendar and stay open; a few local branches may adjust hours.
Is the stock market open on King Kamehameha I Day?
Yes. Normal trading day.
Are federal offices open on King Kamehameha I Day?
Yes. Federal agencies and federal courts in Hawaii keep regular hours.
Are state offices, courts and the DMV open on King Kamehameha I Day?
It depends. Closed across Hawaii, including state courts, DMV counters, libraries and county offices. No effect in other states.
Are schools open on King Kamehameha I Day?
It depends. Hawaii public schools are normally on summer break; University of Hawaii campuses and school offices close.
Are stores open on King Kamehameha I Day?
Yes. Open; expect parade-day road closures in downtown Honolulu and Waikiki.
Are restaurants and grocery stores open on King Kamehameha I Day?
Yes. Normal hours; busy around parade routes and festival sites.