{"id":56309,"date":"2026-11-08T00:37:55","date_gmt":"2026-11-08T00:37:55","guid":{"rendered":"https:\/\/www.worldclock.com\/kalkulator-zvjezdanog-vremena\/"},"modified":"2026-11-08T00:37:55","modified_gmt":"2026-11-08T00:37:55","slug":"kalkulator-zvjezdanog-vremena","status":"publish","type":"page","link":"https:\/\/www.worldclock.com\/hr\/kalkulator-zvjezdanog-vremena\/","title":{"rendered":"Kalkulator zvjezdanog vremena i julijanskog datuma"},"content":{"rendered":"<div class=\"wc wc-tool-page wc-tool-page--sidereal\"><header class=\"wc-thero\"><div class=\"wc-thero__text\"><nav class=\"wc-crumbs\" aria-label=\"Breadcrumb\"><ol><li><a href=\"https:\/\/www.worldclock.com\/hr\/\">Svjetski sat<\/a><\/li><li><a href=\"https:\/\/www.worldclock.com\/hr\/alati\/\">Alati za vrijeme<\/a><\/li><li><span aria-current=\"page\">Kalkulator zvjezdanog vremena i julijanskog datuma<\/span><\/li><\/ol><\/nav><p class=\"wc-eyebrow\"><span aria-hidden=\"true\">\ud83c\udf0c<\/span> Besplatan alat<\/p><h1 class=\"wc-thero__title\">Kalkulator zvjezdanog vremena i julijanskog datuma<\/h1><p class=\"wc-thero__lead\">Lokalno zvjezdano vrijeme, greenwichko zvjezdano vrijeme, julijanski datum i modificirani julijanski datum u\u017eivo za bilo koje mjesto i vrijeme.<\/p><\/div><\/header><div class=\"wc-tool\"><div class=\"wc-sid\" data-wc-tool=\"sidereal\" data-default=\"{&quot;n&quot;:&quot;Greenwich&quot;,&quot;t&quot;:&quot;Europe\\\/London&quot;,&quot;f&quot;:&quot;gb&quot;,&quot;a&quot;:51.4769,&quot;o&quot;:-0.0005}\"><div class=\"wc-tbar\"><div class=\"wc-field wc-field--grow\"><span>Lokacija<\/span><div class=\"wc-search wc-search--tool\" data-wc-search data-mode=\"add\"><input type=\"search\" placeholder=\"Pretra\u017eite grad\u2026\" aria-label=\"Pretra\u017eite grad\u2026\" autocomplete=\"off\"><ul class=\"wc-search__results\" hidden><\/ul><\/div><\/div><label class=\"wc-field\"><span>Zemljopisna du\u017eina \u00b0<\/span><input type=\"number\" step=\"0.0001\" min=\"-180\" max=\"180\" data-lng><\/label><button type=\"button\" class=\"wc-btn wc-btn--ghost\" data-geo>\ud83d\udccd Koristi moju lokaciju<\/button><\/div><div class=\"wc-sunc__place\" data-place><\/div><div class=\"wc-sunc__cards\" data-cards><\/div><div class=\"wc-panel\" style=\"margin-top:16px\"><h2>Pretvorite datum<\/h2><label class=\"wc-field\"><span>Datum i vrijeme (UTC)<\/span><input type=\"datetime-local\" step=\"1\" data-dt><\/label><dl class=\"wc-unix__out\" data-out><\/dl><\/div><\/div><\/div><section class=\"wc-section wc-tool-info\"><div class=\"wc-prose\"><h2>\u0160to je zvjezdano vrijeme?<\/h2><p>Zvjezdano vrijeme mjeri rotaciju Zemlje u odnosu na udaljene zvijezde, a ne na Sunce. Zvjezdani dan traje oko <strong>23 sata 56 minuta 4 sekunde<\/strong> \u2013 gotovo \u010detiri minute kra\u0107e od sun\u010devog dana \u2013 pa zvijezde svake no\u0107i izlaze \u010detiri minute ranije. Astronomi koriste <strong>lokalno zvjezdano vrijeme (LST)<\/strong> za usmjeravanje teleskopa: zvijezda je najvi\u0161e na nebu kad je LST jednak njezinoj rektascenziji.<\/p><p><strong>Julijanski datum<\/strong> neprekinuti je broj dana od podneva UTC 1. sije\u010dnja 4713. pr. Kr., koji se u astronomiji koristi kako bi se izbjegle kalendarske komplikacije. <strong>Modificirani julijanski datum<\/strong> (MJD) je JD \u2212 2.400.000,5 i po\u010dinje u pono\u0107.<\/p><\/div><\/section><section class=\"wc-section wc-faq\"><h2>\u010cesto postavljana pitanja<\/h2><details><summary>Kako izra\u010dunati lokalno zvjezdano vrijeme?<\/summary><p>Iz julijanskog datuma izra\u010dunajte srednje greenwichko zvjezdano vrijeme, a zatim dodajte svoju zemljopisnu du\u017einu u satima (du\u017eina \u00f7 15, istok pozitivan). Kalkulator iznad to radi u\u017eivo za bilo koju lokaciju.<\/p><\/details><\/section><section class=\"wc-section wc-tools-grid\"><div class=\"wc-section__head\"><h2>Jo\u0161 besplatnih alata za vrijeme<\/h2><a href=\"https:\/\/www.worldclock.com\/hr\/alati\/\">Svi alati \u2192<\/a><\/div><div class=\"wc-toolcards\"><a class=\"wc-toolcard wc-toolcard--sun\" href=\"https:\/\/www.worldclock.com\/hr\/izlazak-zalazak-sunca\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf05<\/span><span class=\"wc-toolcard__name\">Kalkulator izlaska i zalaska sunca<\/span><span class=\"wc-toolcard__desc\">Izlazak, zalazak sunca i zlatni sat.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--golden\" href=\"https:\/\/www.worldclock.com\/hr\/kalkulator-zlatnog-sata\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udcf8<\/span><span class=\"wc-toolcard__name\">Kalkulator zlatnog sata<\/span><span class=\"wc-toolcard__desc\">Najbolje svjetlo za fotografije.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--moon\" href=\"https:\/\/www.worldclock.com\/hr\/mjeseceva-mijena\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf15<\/span><span class=\"wc-toolcard__name\">Mjese\u010deva mijena danas<\/span><span class=\"wc-toolcard__desc\">Ve\u010dera\u0161nji Mjesec i mjese\u010dev kalendar.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--fullmoon\" href=\"https:\/\/www.worldclock.com\/hr\/kalendar-punog-mjeseca\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf1d<\/span><span class=\"wc-toolcard__name\">Kalendar punog mjeseca<\/span><span class=\"wc-toolcard__desc\">Datumi i nazivi punog mjeseca.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--moonrise\" href=\"https:\/\/www.worldclock.com\/hr\/izlazak-zalazak-mjeseca\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf19<\/span><span class=\"wc-toolcard__name\">Izlazak i zalazak Mjeseca<\/span><span class=\"wc-toolcard__desc\">Kada Mjesec izlazi i zalazi.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--birthmoon\" href=\"https:\/\/www.worldclock.com\/hr\/mjesec-na-rodendan\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf82<\/span><span class=\"wc-toolcard__name\">Mjesec na Va\u0161 ro\u0111endan<\/span><span class=\"wc-toolcard__desc\">Mjesec na bilo koji datum.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--astro\" href=\"https:\/\/www.worldclock.com\/hr\/astronomski-kalendar\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd2d<\/span><span class=\"wc-toolcard__name\">Astronomski kalendar<\/span><span class=\"wc-toolcard__desc\">Pomr\u010dine, meteori i nebeski doga\u0111aji.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--converter\" href=\"https:\/\/www.worldclock.com\/hr\/pretvarac-vremenskih-zona\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd01<\/span><span class=\"wc-toolcard__name\">Pretvara\u010d vremenskih zona<\/span><span class=\"wc-toolcard__desc\">Pretvorite vrijeme izme\u0111u bilo kojih gradova.<\/span><\/a><\/div><\/section><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":"","bs_cache_bypass_cache":0,"bs_cache_related_page":0},"class_list":["post-56309","page","type-page","status-publish","hentry"],"acf":[],"taxonomy_info":[],"featured_image_src_large":false,"author_info":{"display_name":"clocker","author_link":"https:\/\/www.worldclock.com\/hr\/author\/clocker\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/www.worldclock.com\/hr\/wp-json\/wp\/v2\/pages\/56309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.worldclock.com\/hr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.worldclock.com\/hr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/hr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/hr\/wp-json\/wp\/v2\/comments?post=56309"}],"version-history":[{"count":0,"href":"https:\/\/www.worldclock.com\/hr\/wp-json\/wp\/v2\/pages\/56309\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.worldclock.com\/hr\/wp-json\/wp\/v2\/media?parent=56309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}