HRS §1-31

Hawaii's official time zone

Read the official text at capitol.hawaii.gov ↗

This section sets Hawaii's official time as ten hours behind Greenwich time, based on the 150th degree of longitude west. The whole state must use this time every year, and it does not follow daylight saving time changes from the federal Uniform Time Act.

everyone

The statute, as written — Hawaiian standard time; definition; observance

A copy, taken August 20, 2026. The version published by the Legislature is the one that governs, and it may have changed since. Check it before relying on anything here.

Hawaiian standard time is ten hours slower than Greenwich time, based on the mean solar time of the one hundred and fiftieth degree of longitude west from Greenwich and shall be the time which the entire State, including all of its political subdivisions, shall observe annually, notwithstanding the daylight time conversion provisions of the Uniform Time Act of 1966, Public Law 89-387, 80 Statutes at Large 107.

Read the official text at capitol.hawaii.gov ↗as published Jan 6, 2026our copy taken Aug 20, 2026

LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.