{"id":51680,"date":"2026-11-01T09:14:02","date_gmt":"2026-11-01T09:14:02","guid":{"rendered":"https:\/\/www.worldclock.com\/unix-aikaleima-muunnin\/"},"modified":"2026-11-01T09:14:02","modified_gmt":"2026-11-01T09:14:02","slug":"unix-aikaleima-muunnin","status":"publish","type":"page","link":"https:\/\/www.worldclock.com\/fi\/unix-aikaleima-muunnin\/","title":{"rendered":"Unix-aikaleimamuunnin"},"content":{"rendered":"<div class=\"wc wc-tool-page wc-tool-page--unix\"><header class=\"wc-thero\"><div class=\"wc-thero__text\"><nav class=\"wc-crumbs\" aria-label=\"Breadcrumb\"><ol><li><a href=\"https:\/\/www.worldclock.com\/fi\/\">Maailmankello<\/a><\/li><li><a href=\"https:\/\/www.worldclock.com\/fi\/tyokalut\/\">Aikaty\u00f6kalut<\/a><\/li><li><span aria-current=\"page\">Unix-aikaleimamuunnin<\/span><\/li><\/ol><\/nav><p class=\"wc-eyebrow\"><span aria-hidden=\"true\">\ud83d\udcbb<\/span> Ilmainen ty\u00f6kalu<\/p><h1 class=\"wc-thero__title\">Unix-aikaleimamuunnin<\/h1><p class=\"wc-thero__lead\">Muunna Unix-epoch-aika luettavaksi p\u00e4iv\u00e4m\u00e4\u00e4r\u00e4ksi ja takaisin mill\u00e4 tahansa aikavy\u00f6hykkeell\u00e4. Sekunnit, millisekunnit ja mikrosekunnit tunnistetaan automaattisesti.<\/p><\/div><\/header><div class=\"wc-tool\"><div class=\"wc-unix\" data-wc-tool=\"unix\"><div class=\"wc-unix__now\"><p class=\"wc-eyebrow\">Nykyinen Unix-aikaleima<\/p><p class=\"wc-unix__epoch\"><span data-epoch>1793540424<\/span> <button type=\"button\" class=\"wc-btn wc-btn--sm\" data-copy=\"epoch\">Kopioi<\/button><\/p><p class=\"wc-tnote\">Millisekunnit: <code data-epochms>1793540424000<\/code><\/p><\/div><div class=\"wc-unix__cols\"><div class=\"wc-unix__box\"><h2>Aikaleima \u2192 p\u00e4iv\u00e4m\u00e4\u00e4r\u00e4<\/h2><label class=\"wc-field\"><span>Unix-aikaleima<\/span><input type=\"text\" inputmode=\"numeric\" data-ts value=\"1793540424\"><\/label><label class=\"wc-field\"><span>N\u00e4yt\u00e4 aikavy\u00f6hykkeell\u00e4<\/span><select data-tz1><\/select><\/label><dl class=\"wc-unix__out\" data-out1><\/dl><\/div><div class=\"wc-unix__box\"><h2>P\u00e4iv\u00e4m\u00e4\u00e4r\u00e4 \u2192 aikaleima<\/h2><label class=\"wc-field\"><span>P\u00e4iv\u00e4m\u00e4\u00e4r\u00e4 &amp; aika<\/span><input type=\"datetime-local\" step=\"1\" data-dt><\/label><label class=\"wc-field\"><span>P\u00e4iv\u00e4m\u00e4\u00e4r\u00e4n aikavy\u00f6hyke<\/span><select data-tz2><\/select><\/label><dl class=\"wc-unix__out\" data-out2><\/dl><\/div><\/div><div class=\"wc-unix__milestones\" data-milestones><\/div><\/div><\/div><section class=\"wc-section wc-tool-info\"><div class=\"wc-prose\"><h2>Mik\u00e4 on Unix-aikaleima?<\/h2><p>Unix-aikaleima (my\u00f6s epoch-aika tai POSIX-aika) on sekuntien m\u00e4\u00e4r\u00e4, joka on kulunut hetkest\u00e4 <strong>1.1.1970 klo 00.00.00 UTC<\/strong>, karkaussekunteja laskematta. Koska se on sama luku kaikkialla maailmassa samalla hetkell\u00e4, se on vakiotapa, jolla tietokoneet tallentavat ja v\u00e4litt\u00e4v\u00e4t aikoja \u2013 aikavy\u00f6hyke otetaan huomioon vasta, kun luku n\u00e4ytet\u00e4\u00e4n ihmiselle.<\/p><p>Monet j\u00e4rjestelm\u00e4t k\u00e4ytt\u00e4v\u00e4t sekuntien (10 numeroa) sijaan millisekunteja (13 numeroa). T\u00e4m\u00e4 muunnin tunnistaa sekunnit, millisekunnit ja mikrosekunnit automaattisesti.<\/p><h2>Vuoden 2038 ongelma<\/h2><p>Vanhemmat j\u00e4rjestelm\u00e4t tallentavat aikaleiman etumerkillisen\u00e4 32-bittisen\u00e4 lukuna, joka vuotaa yli arvossa 2 147 483 647 \u2013 19.1.2038 klo 03.14.07 UTC. Nykyaikaiset 64-bittiset j\u00e4rjestelm\u00e4t eiv\u00e4t ole ongelmalle alttiita.<\/p><h2>Hae nykyinen aikaleima koodissa<\/h2><\/div><div class=\"wc-table-wrap\"><table class=\"wc-code\"><tr><th>JavaScript<\/th><td><code>Math.floor(Date.now() \/ 1000)<\/code><\/td><\/tr><tr><th>Python<\/th><td><code>import time; int(time.time())<\/code><\/td><\/tr><tr><th>PHP<\/th><td><code>time()<\/code><\/td><\/tr><tr><th>Java<\/th><td><code>Instant.now().getEpochSecond()<\/code><\/td><\/tr><tr><th>C#<\/th><td><code>DateTimeOffset.UtcNow.ToUnixTimeSeconds()<\/code><\/td><\/tr><tr><th>Go<\/th><td><code>time.Now().Unix()<\/code><\/td><\/tr><tr><th>Ruby<\/th><td><code>Time.now.to_i<\/code><\/td><\/tr><tr><th>Rust<\/th><td><code>SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs()<\/code><\/td><\/tr><tr><th>MySQL<\/th><td><code>SELECT UNIX_TIMESTAMP();<\/code><\/td><\/tr><tr><th>PostgreSQL<\/th><td><code>SELECT extract(epoch FROM now());<\/code><\/td><\/tr><tr><th>Bash<\/th><td><code>date +%s<\/code><\/td><\/tr><\/table><\/div><\/section><section class=\"wc-section wc-faq\"><h2>Usein kysytty\u00e4<\/h2><details><summary>Mik\u00e4 on epoch-aika?<\/summary><p>Epoch-aika on sekuntien m\u00e4\u00e4r\u00e4 Unix-epookista eli hetkest\u00e4 1.1.1970 klo 00.00.00 UTC. Se on sama asia kuin Unix-aikaleima.<\/p><\/details><details><summary>Onko Unix-aikaleima UTC-aikaa?<\/summary><p>Kyll\u00e4. Unix-aikaleima lasketaan aina keskiy\u00f6st\u00e4 UTC 1.1.1970, joten sill\u00e4 ei ole aikavy\u00f6hykett\u00e4. Siit\u00e4 tulee paikallinen p\u00e4iv\u00e4m\u00e4\u00e4r\u00e4 ja aika vasta, kun muunnat sen tietylle aikavy\u00f6hykkeelle.<\/p><\/details><details><summary>Miten tied\u00e4n, onko aikaleima sekunteina vai millisekunteina?<\/summary><p>Nykyisiss\u00e4 sekuntiaikaleimoissa on 10 numeroa, millisekuntiaikaleimoissa 13 ja mikrosekuntiaikaleimoissa 16. Muunnin tunnistaa t\u00e4m\u00e4n automaattisesti.<\/p><\/details><\/section><section class=\"wc-section wc-tools-grid\"><div class=\"wc-section__head\"><h2>Lis\u00e4\u00e4 ilmaisia aikaty\u00f6kaluja<\/h2><a href=\"https:\/\/www.worldclock.com\/fi\/tyokalut\/\">Kaikki ty\u00f6kalut \u2192<\/a><\/div><div class=\"wc-toolcards\"><a class=\"wc-toolcard wc-toolcard--converter\" href=\"https:\/\/www.worldclock.com\/fi\/aikavyohykemuunnin\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd01<\/span><span class=\"wc-toolcard__name\">Aikavy\u00f6hykemuunnin<\/span><span class=\"wc-toolcard__desc\">Muunna aika mink\u00e4 tahansa kaupunkien v\u00e4lill\u00e4.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--difference\" href=\"https:\/\/www.worldclock.com\/fi\/aikaero\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\u2194\ufe0f<\/span><span class=\"wc-toolcard__name\">Aikaerolaskuri<\/span><span class=\"wc-toolcard__desc\">Tunnit kahden kaupungin v\u00e4lill\u00e4.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--meeting\" href=\"https:\/\/www.worldclock.com\/fi\/kokousplanneri\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udcc5<\/span><span class=\"wc-toolcard__name\">Kokousplanneri<\/span><span class=\"wc-toolcard__desc\">L\u00f6yd\u00e4 kokousajat, jotka sopivat jokaiseen kaupunkiin.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--map\" href=\"https:\/\/www.worldclock.com\/fi\/aikavyohykekartta\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\uddfa\ufe0f<\/span><span class=\"wc-toolcard__name\">Aikavy\u00f6hykekartta<\/span><span class=\"wc-toolcard__desc\">Maailman aikavy\u00f6hykkeiden interaktiivinen kartta.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--whereami\" href=\"https:\/\/www.worldclock.com\/fi\/milla-aikavyohykkeella-olen\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udccd<\/span><span class=\"wc-toolcard__name\">Mill\u00e4 aikavy\u00f6hykkeell\u00e4 olen?<\/span><span class=\"wc-toolcard__desc\">Aikavy\u00f6hykkeesi tunnistettuna.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--military\" href=\"https:\/\/www.worldclock.com\/fi\/sotilasaika-muunnin\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf96\ufe0f<\/span><span class=\"wc-toolcard__name\">Sotilasaikamuunnin<\/span><span class=\"wc-toolcard__desc\">24 tunnin aika ja Zulu-aika helposti.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--flight\" href=\"https:\/\/www.worldclock.com\/fi\/lentoaikalaskuri\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udeec<\/span><span class=\"wc-toolcard__name\">Lennon saapumisaikalaskuri<\/span><span class=\"wc-toolcard__desc\">Paikallinen saapumisaika mille tahansa lennolle.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--moon\" href=\"https:\/\/www.worldclock.com\/fi\/kuun-vaihe\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf15<\/span><span class=\"wc-toolcard__name\">Kuun vaihe t\u00e4n\u00e4\u00e4n<\/span><span class=\"wc-toolcard__desc\">T\u00e4m\u00e4n illan kuu ja kuukalenteri.<\/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-51680","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\/fi\/author\/clocker\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/pages\/51680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/comments?post=51680"}],"version-history":[{"count":0,"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/pages\/51680\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/media?parent=51680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}