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Reference.org
Chamorro Time Zone
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<p>The Chamorro Time Zone, formerly the Guam Time Zone, is a <a href="/facts/Time_in_the_United_States/0cYu1kBq">United States time zone</a> which observes <a href="/facts/Standard_time/3dKMYnjM">standard time</a> ten hours ahead of <a href="/facts/Coordinated_Universal_Time/2EnjfSyu">Coordinated Universal Time</a> (<a href="/facts/UTC%2B10:00/tv3FcuC6">UTC+10:00</a>). The clock time in this zone is based on the <a href="/facts/Mean_solar_time/aYq9JqwI">mean solar time</a> of the <a href="/facts/150th_meridian_east/7cQe5xNT">150th meridian east</a> of the <a href="/facts/Greenwich_Observatory/gDxv9o65">Greenwich Observatory</a>. </p><p>The zone includes the <a href="/facts/Territories_of_the_United_States/NYfp1J30">U.S. territories</a> of <a href="/facts/Guam/z77Ql3fM">Guam</a> and the <a href="/facts/Northern_Mariana_Islands/Tb6CPrao">Northern Mariana Islands</a>, where the <a href="/facts/Chamorro_people/oK5e6awJ">Chamorro people</a> are the original inhabitants. Since <a href="/facts/Daylight_Saving_Time/bEWvB1Rt">Daylight Saving Time</a> (DST) is not observed anywhere in this zone, the time is always known as Chamorro Standard Time (ChST). </p><p>The zone is two hours behind <a href="/facts/Wake_Island_Time_Zone/QEnomPlS">Wake Island Time Zone</a> and 15 hours ahead of North American <a href="/facts/Eastern_Time_Zone_(North_America)/jP4S8j1V">Eastern Time Zone</a>. As of March 19, 2024 it is the easternmost (farthest ahead) time zone shown on the U.S. government's time.gov webpage. Although <a href="/facts/Wake_Island/wLdjtjCF">Wake</a>, <a href="/facts/Howland_Island/jkW56QCj">Howland</a> and <a href="/facts/Baker_Island/vCgl0oIR">Baker Islands</a> are U.S. territories in more easterly time zones (that are not shown), they are uninhabited. </p><p>Chamorro Standard Time shares the same time as <a href="/facts/Time_in_Australia/pbXrDAa5">Australian Eastern Standard Time</a>. The State of <a href="/facts/Queensland/lXBlIeY3">Queensland</a> also does not observe DST, so the Commonwealth of the Northern Mariana Islands (CNMI), Guam and Queensland are on the same time year round. </p>