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AAT ICAS 3136 ✧ zoneZodiac zone set

document note: this document is part of the Integrated Chronological Applications System (ICAS). Alliance for the Advancement of Technology (AAT) provides ICAS standards documents subject to terms of use described in document AAT ICAS 9010. please refer to other key AAT ICAS standards documents accessible via the AAT ICAS web site at for important information about ICAS.

this document designates the AAT ICAS zoneZodiac zone set.

table 3136.1 ✧ aaticas namespace of zoneZodiac

aaticas namespaceelement set
<aaticas:developer>AAT ICAS
<aaticas:metaCat>local time specification

table 3136.2 ✧ AAT ICAS zoneZodiac zone set

zoneIDC time at zodiac(0) t500SMH time at zodiac(0) 12:00longitude locales*
zoneIDC time at zodiac(0) t500SMH time at zodiac(0) 12:00longitude locales*
special note: * certain locales may use a particular zone independent of longitude. ICAS time zone sets are not intended as a local specification of time for a particular locale.
zodiac(-11)t041 tt66701:00172°30'W to 157°30'W
zodiac(-10)t083 tt33302:00157°30'W to 142°30'W
zodiac(-9)t12503:00142°30'W to 127°30'W
zodiac(-8:30)t145 tt83303:30
zodiac(-8)t166 tt66704:00127°30'W to 112°30'WPacific Standard Time: Seattle, SanFrancisco, Los Angeles, San Diego
zodiac(-7)t208 tt33305:00112°30'W to 97°30'WMountain Standard Time: Denver, Salt Lake City, Phoenix, Albuquerque
zodiac(-6)t25006:0097°30'W to 82°30'WCentral Standard Time: Minneapolis, Chicago, Mexico City
zodiac(-5:30)t270 tt83306:30
zodiac(-5)t291 tt66707:0082°30'W to 67°30'WEastern Standard Time: New York, Miami
zodiac(-4)t333 tt33308:0067°30'W to 52°30'W
zodiac(-3:45)t343 tt75008:15
zodiac(-3:30)t354 tt16708:30
zodiac(-3)t37509:0052°30'W to 37°30'Wstandard time in Greenland, Sao Paulo, Rio de Janeiro, Argentina
zodiac(-2)t416 tt66710:0037°30'W to 22°30'W
zodiac(-1)t458 tt33311:0022°30'W to 7°30'W
zodiac(-0:45)t468 tt75011:15
zodiac(0)t500 noon12:00 noon7°30'W to 7°30'EUT; standard time in London, Reykjavik
zodiac(+1)t541 tt66713:007°30'E to 22°30'E
zodiac(+2)t583 tt33314:0022°30'E to 37°30'E
zodiac(+3)t62515:0037°30'E to 52°30'E
zodiac(+3:30)t645 tt83315:30
zodiac(+4)t666 tt66716:0052°30'E to 67°30'E
zodiac(+4:30)t687 tt50016:30
zodiac(+5)t708 tt33317:0067°30'E to 82°30'E
zodiac(+5:30)t729 tt16717:30
zodiac(+6)t75018:0082°30'E to 97°30'E
zodiac(+6:30)t770 tt83318:30
zodiac(+7)t791 tt66719:0097°30'E to 112°30'E
zodiac(+7:30)t812 tt50019:30
zodiac(+8)t833 tt33320:00112°30'E to 127°30'E
zodiac(+9)t87521:00127°30'E to 142°30'E
zodiac(+9:30)t895 tt83321:30
zodiac(+10)t916 tt66722:00142°30'E to 157°30'E
zodiac(+11)t958 tt33323:00157°30'E to 172°30'E
zodiac(+11:30)t979 tt16723:30
zodiac(+12)t000 midnight00:00 midnight172°30'E to 172°30'WInternational Date Line** is 180 degrees **(cross westward add 1 day, cross eastward subtract 1 day)
ICAS in useICAS in useICAS in useimageICAS in use

top document updated:

system identifiersdatetime
Uniform CalendarUCUCN 12019 S19 Yellow
Inter-Dial ClockIDCzone(UT)t339 tt050
'ICAS in use' can accommodate calendar and clock formatting 'for all people, for all time'.
day of yearD-o-YAD common year day139
Gregorian calendarGG2019 May 19 Sunday
seconds, minutes, hoursSMHUT08:08:14
style legend


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