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Horologium

Welcome to the Prague astronomical clock simulator!

  • Set a predefined or a custom date and see the changes in the astronomical clock configuration.
  • Change the latitude and investigate hypotetical appearance of the astronomical clock in the given location.
  • Press F11 to switch the browser into a full screen mode and thus enhance your experience.
  • Click the More Info link and get more information about the application features and also the astronomical clock itself.
  • Have fun with this application!
Settings
  • Custom
  • Now
  • Vernal equinox
  • Summer solstice
  • Autumnal equinox
  • Winter solstice
  • New Moon
  • Full Moon
Year
2014
Month
4
Day
23
Hour
23
Minute
22
Latitude
  • 65
  • 60
  • 55
  • 50
  • 45
  • 40
  • 35
  • 30
  • 25
  • -25
  • -30
  • -35
  • -40
  • -45
  • -50
  • -55
  • -60
  • -65

Time Zone
  • Pacific/Midway
  • Pacific/Niue
  • Pacific/Pago_Pago
  • Pacific/Samoa
  • US/Samoa
  • America/Adak
  • America/Atka
  • Pacific/Honolulu
  • Pacific/Johnston
  • Pacific/Rarotonga
  • Pacific/Tahiti
  • SystemV/HST10
  • US/Aleutian
  • US/Hawaii
  • Pacific/Marquesas
  • America/Anchorage
  • America/Juneau
  • America/Nome
  • America/Sitka
  • America/Yakutat
  • Pacific/Gambier
  • SystemV/YST9
  • SystemV/YST9YDT
  • US/Alaska
  • America/Dawson
  • America/Ensenada
  • America/Los_Angeles
  • America/Metlakatla
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • America/Whitehorse
  • Canada/Pacific
  • Canada/Yukon
  • Mexico/BajaNorte
  • PST8PDT
  • Pacific/Pitcairn
  • SystemV/PST8
  • SystemV/PST8PDT
  • US/Pacific
  • US/Pacific-New
  • America/Boise
  • America/Cambridge_Bay
  • America/Chihuahua
  • America/Creston
  • America/Dawson_Creek
  • America/Denver
  • America/Edmonton
  • America/Hermosillo
  • America/Inuvik
  • America/Mazatlan
  • America/Ojinaga
  • America/Phoenix
  • America/Shiprock
  • America/Yellowknife
  • Canada/Mountain
  • MST7MDT
  • Mexico/BajaSur
  • Navajo
  • SystemV/MST7
  • SystemV/MST7MDT
  • US/Arizona
  • US/Mountain
  • America/Bahia_Banderas
  • America/Belize
  • America/Cancun
  • America/Chicago
  • America/Costa_Rica
  • America/El_Salvador
  • America/Guatemala
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Managua
  • America/Matamoros
  • America/Menominee
  • America/Merida
  • America/Mexico_City
  • America/Monterrey
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Regina
  • America/Resolute
  • America/Swift_Current
  • America/Tegucigalpa
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • Canada/East-Saskatchewan
  • Canada/Saskatchewan
  • Chile/EasterIsland
  • Mexico/General
  • Pacific/Easter
  • Pacific/Galapagos
  • SystemV/CST6
  • SystemV/CST6CDT
  • US/Central
  • US/Indiana-Starke
  • America/Atikokan
  • America/Bogota
  • America/Cayman
  • America/Coral_Harbour
  • America/Detroit
  • America/Fort_Wayne
  • America/Grand_Turk
  • America/Guayaquil
  • America/Havana
  • America/Indiana/Indianapolis
  • America/Indiana/Marengo
  • America/Indiana/Petersburg
  • America/Indiana/Vevay
  • America/Indiana/Vincennes
  • America/Indiana/Winamac
  • America/Indianapolis
  • America/Iqaluit
  • America/Jamaica
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Lima
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Panama
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • Cuba
  • EST5EDT
  • Jamaica
  • SystemV/EST5
  • SystemV/EST5EDT
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
  • America/Caracas
  • America/Anguilla
  • America/Antigua
  • America/Argentina/San_Luis
  • America/Aruba
  • America/Asuncion
  • America/Barbados
  • America/Blanc-Sablon
  • America/Boa_Vista
  • America/Campo_Grande
  • America/Cuiaba
  • America/Curacao
  • America/Dominica
  • America/Eirunepe
  • America/Glace_Bay
  • America/Goose_Bay
  • America/Grenada
  • America/Guadeloupe
  • America/Guyana
  • America/Halifax
  • America/Kralendijk
  • America/La_Paz
  • America/Lower_Princes
  • America/Manaus
  • America/Marigot
  • America/Martinique
  • America/Moncton
  • America/Montserrat
  • America/Port_of_Spain
  • America/Porto_Acre
  • America/Porto_Velho
  • America/Puerto_Rico
  • America/Rio_Branco
  • America/Santiago
  • America/Santo_Domingo
  • America/St_Barthelemy
  • America/St_Kitts
  • America/St_Lucia
  • America/St_Thomas
  • America/St_Vincent
  • America/Thule
  • America/Tortola
  • America/Virgin
  • Antarctica/Palmer
  • Atlantic/Bermuda
  • Brazil/Acre
  • Brazil/West
  • Canada/Atlantic
  • Chile/Continental
  • SystemV/AST4
  • SystemV/AST4ADT
  • America/St_Johns
  • Canada/Newfoundland
  • America/Araguaina
  • America/Argentina/Buenos_Aires
  • America/Argentina/Catamarca
  • America/Argentina/ComodRivadavia
  • America/Argentina/Cordoba
  • America/Argentina/Jujuy
  • America/Argentina/La_Rioja
  • America/Argentina/Mendoza
  • America/Argentina/Rio_Gallegos
  • America/Argentina/Salta
  • America/Argentina/San_Juan
  • America/Argentina/Tucuman
  • America/Argentina/Ushuaia
  • America/Bahia
  • America/Belem
  • America/Buenos_Aires
  • America/Catamarca
  • America/Cayenne
  • America/Cordoba
  • America/Fortaleza
  • America/Godthab
  • America/Jujuy
  • America/Maceio
  • America/Mendoza
  • America/Miquelon
  • America/Montevideo
  • America/Paramaribo
  • America/Recife
  • America/Rosario
  • America/Santarem
  • America/Sao_Paulo
  • Antarctica/Rothera
  • Atlantic/Stanley
  • Brazil/East
  • America/Noronha
  • Atlantic/South_Georgia
  • Brazil/DeNoronha
  • America/Scoresbysund
  • Atlantic/Azores
  • Atlantic/Cape_Verde
  • Africa/Abidjan
  • Africa/Accra
  • Africa/Bamako
  • Africa/Banjul
  • Africa/Bissau
  • Africa/Casablanca
  • Africa/Conakry
  • Africa/Dakar
  • Africa/El_Aaiun
  • Africa/Freetown
  • Africa/Lome
  • Africa/Monrovia
  • Africa/Nouakchott
  • Africa/Ouagadougou
  • Africa/Sao_Tome
  • Africa/Timbuktu
  • America/Danmarkshavn
  • Atlantic/Canary
  • Atlantic/Faeroe
  • Atlantic/Faroe
  • Atlantic/Madeira
  • Atlantic/Reykjavik
  • Atlantic/St_Helena
  • Eire
  • Etc/Greenwich
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • Europe/Belfast
  • Europe/Dublin
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/Lisbon
  • Europe/London
  • GB
  • GB-Eire
  • GMT0
  • Greenwich
  • Iceland
  • Portugal
  • Universal
  • Zulu
  • Africa/Algiers
  • Africa/Bangui
  • Africa/Brazzaville
  • Africa/Ceuta
  • Africa/Douala
  • Africa/Kinshasa
  • Africa/Lagos
  • Africa/Libreville
  • Africa/Luanda
  • Africa/Malabo
  • Africa/Ndjamena
  • Africa/Niamey
  • Africa/Porto-Novo
  • Africa/Tripoli
  • Africa/Tunis
  • Africa/Windhoek
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • Libya
  • Poland
  • Africa/Blantyre
  • Africa/Bujumbura
  • Africa/Cairo
  • Africa/Gaborone
  • Africa/Harare
  • Africa/Johannesburg
  • Africa/Kigali
  • Africa/Lubumbashi
  • Africa/Lusaka
  • Africa/Maputo
  • Africa/Maseru
  • Africa/Mbabane
  • Asia/Amman
  • Asia/Beirut
  • Asia/Damascus
  • Asia/Gaza
  • Asia/Hebron
  • Asia/Istanbul
  • Asia/Jerusalem
  • Asia/Nicosia
  • Asia/Tel_Aviv
  • Egypt
  • Europe/Athens
  • Europe/Bucharest
  • Europe/Chisinau
  • Europe/Helsinki
  • Europe/Istanbul
  • Europe/Kiev
  • Europe/Mariehamn
  • Europe/Nicosia
  • Europe/Riga
  • Europe/Simferopol
  • Europe/Sofia
  • Europe/Tallinn
  • Europe/Tiraspol
  • Europe/Uzhgorod
  • Europe/Vilnius
  • Europe/Zaporozhye
  • Israel
  • Turkey
  • Africa/Addis_Ababa
  • Africa/Asmara
  • Africa/Asmera
  • Africa/Dar_es_Salaam
  • Africa/Djibouti
  • Africa/Juba
  • Africa/Kampala
  • Africa/Khartoum
  • Africa/Mogadishu
  • Africa/Nairobi
  • Antarctica/Syowa
  • Asia/Aden
  • Asia/Baghdad
  • Asia/Bahrain
  • Asia/Kuwait
  • Asia/Qatar
  • Asia/Riyadh
  • Europe/Kaliningrad
  • Europe/Minsk
  • Indian/Antananarivo
  • Indian/Comoro
  • Indian/Mayotte
  • Asia/Riyadh87
  • Asia/Riyadh88
  • Asia/Riyadh89
  • Mideast/Riyadh87
  • Mideast/Riyadh88
  • Mideast/Riyadh89
  • Asia/Tehran
  • Iran
  • Asia/Baku
  • Asia/Dubai
  • Asia/Muscat
  • Asia/Tbilisi
  • Asia/Yerevan
  • Europe/Moscow
  • Europe/Samara
  • Europe/Volgograd
  • Indian/Mahe
  • Indian/Mauritius
  • Indian/Reunion
  • W-SU
  • Asia/Kabul
  • Antarctica/Mawson
  • Asia/Aqtau
  • Asia/Aqtobe
  • Asia/Ashgabat
  • Asia/Ashkhabad
  • Asia/Dushanbe
  • Asia/Karachi
  • Asia/Oral
  • Asia/Samarkand
  • Asia/Tashkent
  • Indian/Kerguelen
  • Indian/Maldives
  • Asia/Calcutta
  • Asia/Colombo
  • Asia/Kolkata
  • Asia/Kathmandu
  • Asia/Katmandu
  • Antarctica/Vostok
  • Asia/Almaty
  • Asia/Bishkek
  • Asia/Dacca
  • Asia/Dhaka
  • Asia/Qyzylorda
  • Asia/Thimbu
  • Asia/Thimphu
  • Asia/Yekaterinburg
  • Indian/Chagos
  • Asia/Rangoon
  • Indian/Cocos
  • Antarctica/Davis
  • Asia/Bangkok
  • Asia/Ho_Chi_Minh
  • Asia/Hovd
  • Asia/Jakarta
  • Asia/Novokuznetsk
  • Asia/Novosibirsk
  • Asia/Omsk
  • Asia/Phnom_Penh
  • Asia/Pontianak
  • Asia/Saigon
  • Asia/Vientiane
  • Indian/Christmas
  • Antarctica/Casey
  • Asia/Brunei
  • Asia/Choibalsan
  • Asia/Chongqing
  • Asia/Chungking
  • Asia/Harbin
  • Asia/Hong_Kong
  • Asia/Kashgar
  • Asia/Krasnoyarsk
  • Asia/Kuala_Lumpur
  • Asia/Kuching
  • Asia/Macao
  • Asia/Macau
  • Asia/Makassar
  • Asia/Manila
  • Asia/Shanghai
  • Asia/Singapore
  • Asia/Taipei
  • Asia/Ujung_Pandang
  • Asia/Ulaanbaatar
  • Asia/Ulan_Bator
  • Asia/Urumqi
  • Australia/Perth
  • Australia/West
  • Hongkong
  • Singapore
  • Australia/Eucla
  • Asia/Dili
  • Asia/Irkutsk
  • Asia/Jayapura
  • Asia/Pyongyang
  • Asia/Seoul
  • Asia/Tokyo
  • Japan
  • Pacific/Palau
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/Darwin
  • Australia/North
  • Australia/South
  • Australia/Yancowinna
  • Antarctica/DumontDUrville
  • Asia/Khandyga
  • Asia/Yakutsk
  • Australia/ACT
  • Australia/Brisbane
  • Australia/Canberra
  • Australia/Currie
  • Australia/Hobart
  • Australia/Lindeman
  • Australia/Melbourne
  • Australia/NSW
  • Australia/Queensland
  • Australia/Sydney
  • Australia/Tasmania
  • Australia/Victoria
  • Pacific/Chuuk
  • Pacific/Guam
  • Pacific/Port_Moresby
  • Pacific/Saipan
  • Pacific/Truk
  • Pacific/Yap
  • Australia/LHI
  • Australia/Lord_Howe
  • Antarctica/Macquarie
  • Asia/Sakhalin
  • Asia/Ust-Nera
  • Asia/Vladivostok
  • Pacific/Efate
  • Pacific/Guadalcanal
  • Pacific/Kosrae
  • Pacific/Noumea
  • Pacific/Pohnpei
  • Pacific/Ponape
  • Pacific/Norfolk
  • Antarctica/McMurdo
  • Antarctica/South_Pole
  • Asia/Anadyr
  • Asia/Kamchatka
  • Asia/Magadan
  • Kwajalein
  • NZ
  • Pacific/Auckland
  • Pacific/Fiji
  • Pacific/Funafuti
  • Pacific/Kwajalein
  • Pacific/Majuro
  • Pacific/Nauru
  • Pacific/Tarawa
  • Pacific/Wake
  • Pacific/Wallis
  • NZ-CHAT
  • Pacific/Chatham
  • Pacific/Apia
  • Pacific/Enderbury
  • Pacific/Fakaofo
  • Pacific/Tongatapu
  • Pacific/Kiritimati

Language
  • English
  • Czech – Čeština
  • Russian – Русский
  • Slovak – Slovenčina

Copyright © 2012 Jan Tošovský

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