Is the dollar the currency in Hawaii?

Is The United States dollar (sign: $; code: USD), the official currency of the United States, Zimbabwe, Palau, Marshall Islands, El Salvador, British Virgin Islands, Ecuador, and Federated States of Micronesia currently a currency that is officially used (declared by the government) within the geographical area Hawaii (or in English; Hawaiian: Mokuāina o Hawaii), the newest of the 50 US states (August 21, 1959), and is the only U.S. state made up entirely of islands?

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Show reasoning Reasoning

I followed this chain of reasoning:

By calculation (generator: ["now@trueknowledge.com"]) I know that:
The current time is May 23rd 2013, 22:29:28

I know from locally stored knowledge that:
Fact 1: Hawaii is in the US dollar zone ([fact: ["664218424@trueknowledge.com"]])

Fact 1 is true for January 25th 2010, 15:45:31 onwards ([fact: ["664218444@trueknowledge.com"]])

By calculation (generator: ["timeperiodtopoint@trueknowledge.com"]) I know that:
Fact 1 is true at May 23rd 2013, 22:29:28

I know from locally stored knowledge that:
the US dollar zone is a currency zone ([fact: ["20052916@trueknowledge.com"]])

Fact 2: United States dollar is the official currency of the US dollar zone ([fact: ["20053313@trueknowledge.com"]])

Fact 2 is true for September 1st 2007, 00:00:00 onwards ([fact: ["20053314@trueknowledge.com"]])

By calculation (generator: ["timeperiodtopoint@trueknowledge.com"]) I know that:
Fact 2 is true at May 23rd 2013, 22:29:28

By calculation (generator: ["official_currency_used_within2@trueknowledge.com"]) I know that:
Fact 3: United States dollar is the official currency of Hawaii

Fact 3 is true at May 23rd 2013, 22:29:28

I used the following facts to provide this answer:

Hawaii has been in the US dollar zone since at least January 25th 2010, 15:45:31

agree disagree edit

the US dollar zone is or has been a currency zone

agree disagree edit

United States dollar has been the official currency of the US dollar zone since at least September 1st 2007, 00:00:00

agree disagree edit