{"id":51681,"date":"2026-11-01T09:14:03","date_gmt":"2026-11-01T09:14:03","guid":{"rendered":"https:\/\/www.worldclock.com\/jet-lag-laskuri\/"},"modified":"2026-11-01T09:14:03","modified_gmt":"2026-11-01T09:14:03","slug":"jet-lag-laskuri","status":"publish","type":"page","link":"https:\/\/www.worldclock.com\/fi\/jet-lag-laskuri\/","title":{"rendered":"Aikaerorasituslaskuri"},"content":{"rendered":"<div class=\"wc wc-tool-page wc-tool-page--jetlag\"><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\">Aikaerorasituslaskuri<\/span><\/li><\/ol><\/nav><p class=\"wc-eyebrow\"><span aria-hidden=\"true\">\u2708\ufe0f<\/span> Ilmainen ty\u00f6kalu<\/p><h1 class=\"wc-thero__title\">Aikaerorasituslaskuri<\/h1><p class=\"wc-thero__lead\">Anna l\u00e4ht\u00f6- ja m\u00e4\u00e4r\u00e4np\u00e4\u00e4 ja saat p\u00e4iv\u00e4kohtaisen suunnitelman: milloin nukkua, milloin hakeutua valoon ja milloin v\u00e4ltt\u00e4\u00e4 sit\u00e4.<\/p><\/div><\/header><div class=\"wc-tool\"><div class=\"wc-jet\" data-wc-tool=\"jetlag\" data-from=\"{&quot;n&quot;:&quot;Lontoo&quot;,&quot;t&quot;:&quot;Europe\\\/London&quot;,&quot;f&quot;:&quot;gb&quot;}\" data-to=\"{&quot;n&quot;:&quot;Bangkok&quot;,&quot;t&quot;:&quot;Asia\\\/Bangkok&quot;,&quot;f&quot;:&quot;th&quot;}\"><div class=\"wc-jet__form\"><div class=\"wc-field\"><span>L\u00e4ht\u00f6paikka<\/span><div class=\"wc-jet__city\" data-city=\"from\"><\/div><div class=\"wc-search wc-search--tool\" data-wc-search data-mode=\"add\" data-side=\"from\"><input type=\"search\" placeholder=\"Vaihda l\u00e4ht\u00f6kaupunki\u2026\" aria-label=\"Vaihda l\u00e4ht\u00f6kaupunki\u2026\" autocomplete=\"off\"><ul class=\"wc-search__results\" hidden><\/ul><\/div><\/div><div class=\"wc-field\"><span>M\u00e4\u00e4r\u00e4np\u00e4\u00e4<\/span><div class=\"wc-jet__city\" data-city=\"to\"><\/div><div class=\"wc-search wc-search--tool\" data-wc-search data-mode=\"add\" data-side=\"to\"><input type=\"search\" placeholder=\"Vaihda m\u00e4\u00e4r\u00e4np\u00e4\u00e4\u2026\" aria-label=\"Vaihda m\u00e4\u00e4r\u00e4np\u00e4\u00e4\u2026\" autocomplete=\"off\"><ul class=\"wc-search__results\" hidden><\/ul><\/div><\/div><label class=\"wc-field\"><span>Saapumisp\u00e4iv\u00e4<\/span><input type=\"date\" data-date><\/label><label class=\"wc-field\"><span>Nukut yleens\u00e4<\/span><select data-sleep><option value=\"22\">22.00 \u2013 06.00<\/option><option value=\"23\" selected>23.00 \u2013 07.00<\/option><option value=\"0\">00.00 \u2013 08.00<\/option><option value=\"1\">01.00 \u2013 09.00<\/option><\/select><\/label><\/div><div class=\"wc-jet__result\" data-result><\/div><div class=\"wc-jet__plan\" data-plan><\/div><p class=\"wc-tnote\">T\u00e4m\u00e4 on yleist\u00e4 ohjeistusta siit\u00e4, miten sis\u00e4inen kello reagoi valoon, ei l\u00e4\u00e4ketieteellinen neuvo. Keskustele l\u00e4\u00e4k\u00e4rin kanssa ennen melatoniinin tai unil\u00e4\u00e4kkeiden k\u00e4ytt\u00f6\u00e4.<\/p><\/div><\/div><section class=\"wc-section wc-tool-info\"><div class=\"wc-prose\"><h2>N\u00e4in aikaerorasitussuunnitelma toimii<\/h2><p>Aikaerorasitus (jet lag) johtuu siit\u00e4, ett\u00e4 sis\u00e4inen kellosi (vuorokausirytmi) pysyy kotiajassa laskeutumisen j\u00e4lkeen. Se siirtyy noin <strong>tunnin p\u00e4iv\u00e4ss\u00e4 lent\u00e4ess\u00e4si it\u00e4\u00e4n<\/strong> ja noin <strong>1,5 tuntia p\u00e4iv\u00e4ss\u00e4 lent\u00e4ess\u00e4si l\u00e4nteen<\/strong> \u2013 siksi it\u00e4\u00e4n lent\u00e4minen tuntuu yleens\u00e4 pahemmalta.<\/p><p>Valo on vahvin signaali kellon uudelleenasettamiseen. Valo kehosi alimman l\u00e4mp\u00f6tilan hetken (noin kaksi tuntia ennen tavallista her\u00e4\u00e4misaikaasi) <em>j\u00e4lkeisin\u00e4<\/em> tunteina siirt\u00e4\u00e4 kelloasi aikaisemmaksi; valo sit\u00e4 <em>edelt\u00e4vin\u00e4<\/em> tunteina siirt\u00e4\u00e4 kelloasi my\u00f6hemm\u00e4ksi. Yll\u00e4 oleva suunnitelma ajoittaa valon ja pime\u00e4n niin, ett\u00e4 kellosi siirtyy oikeaan suuntaan \u2013 ja varoittaa, jos aamuvalo ty\u00f6nt\u00e4isi sit\u00e4 v\u00e4\u00e4r\u00e4\u00e4n suuntaan pitk\u00e4n it\u00e4\u00e4n suuntautuvan lennon j\u00e4lkeen.<\/p><h2>Pikavinkit<\/h2><ul><li>Siirr\u00e4 nukkumaanmenoaikaasi tunti p\u00e4iv\u00e4ss\u00e4 kohti kohteen aikaa 2\u20133 p\u00e4iv\u00e4n ajan ennen lentoa.<\/li><li>Juo vett\u00e4 ja kohtuullista alkoholia ja kofeiinia koneessa.<\/li><li>Sy\u00f6 perill\u00e4 paikallisen ajan mukaan ja pid\u00e4 p\u00e4iv\u00e4unet alle 30 minuutissa.<\/li><\/ul><\/div><\/section><section class=\"wc-section wc-faq\"><h2>Usein kysytty\u00e4<\/h2><details><summary>Kuinka kauan aikaerorasitus kest\u00e4\u00e4?<\/summary><p>Nyrkkis\u00e4\u00e4nt\u00f6n\u00e4 noin yksi p\u00e4iv\u00e4 jokaista ylitetty\u00e4 aikavy\u00f6hykett\u00e4 kohden it\u00e4\u00e4n lent\u00e4ess\u00e4 ja hieman v\u00e4hemm\u00e4n \u2013 noin kaksi p\u00e4iv\u00e4\u00e4 kolmea aikavy\u00f6hykett\u00e4 kohden \u2013 l\u00e4nteen lent\u00e4ess\u00e4.<\/p><\/details><details><summary>Onko aikaerorasitus pahempi it\u00e4\u00e4n vai l\u00e4nteen lent\u00e4ess\u00e4?<\/summary><p>It\u00e4\u00e4n. It\u00e4\u00e4n lent\u00e4minen tarkoittaa, ett\u00e4 sinun t\u00e4ytyy nukahtaa aikaisemmin kuin kehosi haluaa, ja sis\u00e4ist\u00e4 kelloa on hitaampi aikaistaa kuin my\u00f6h\u00e4ist\u00e4\u00e4.<\/p><\/details><details><summary>Aiheuttavatko pohjois\u2013etel\u00e4-suuntaiset lennot aikaerorasitusta?<\/summary><p>Eiv\u00e4t. Aikaerorasitus johtuu aikavy\u00f6hykkeiden ylitt\u00e4misest\u00e4. Pitk\u00e4 lento Euroopasta Etel\u00e4-Afrikkaan v\u00e4sytt\u00e4\u00e4, mutta aiheuttaa vain v\u00e4h\u00e4n tai ei lainkaan aikaerorasitusta, koska aikaero on vain tunnin tai kaksi.<\/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--hours\" href=\"https:\/\/www.worldclock.com\/fi\/tuntilaskuri\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\u231b<\/span><span class=\"wc-toolcard__name\">Tuntilaskuri<\/span><span class=\"wc-toolcard__desc\">Tunnit kahden ajan v\u00e4lill\u00e4.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--timecard\" href=\"https:\/\/www.worldclock.com\/fi\/tuntikorttilaskuri\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\uddc2\ufe0f<\/span><span class=\"wc-toolcard__name\">Tuntikorttilaskuri<\/span><span class=\"wc-toolcard__desc\">Viikon tunnit, ylity\u00f6t ja palkka.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--decimal\" href=\"https:\/\/www.worldclock.com\/fi\/desimaaliaika-muunnin\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd22<\/span><span class=\"wc-toolcard__name\">Desimaaliaikamuunnin<\/span><span class=\"wc-toolcard__desc\">Tunnit:minuutit \u21c4 desimaalit.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--pomodoro\" href=\"https:\/\/www.worldclock.com\/fi\/pomodoro-ajastin\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf45<\/span><span class=\"wc-toolcard__name\">Pomodoro-ajastin<\/span><span class=\"wc-toolcard__desc\">25 minuutin keskittymisjaksot.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--sleep\" href=\"https:\/\/www.worldclock.com\/fi\/unilaskuri\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\ude34<\/span><span class=\"wc-toolcard__name\">Unilaskuri<\/span><span class=\"wc-toolcard__desc\">Paras nukkumaanmeno- ja her\u00e4\u00e4misaika.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--markets\" href=\"https:\/\/www.worldclock.com\/fi\/porssien-aukioloajat\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udcc8<\/span><span class=\"wc-toolcard__name\">P\u00f6rssien ja yritysten aukioloajat<\/span><span class=\"wc-toolcard__desc\">Onko p\u00f6rssi auki juuri nyt?<\/span><\/a><a class=\"wc-toolcard wc-toolcard--bell\" href=\"https:\/\/www.worldclock.com\/fi\/porssin-lahtolaskenta\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd14<\/span><span class=\"wc-toolcard__name\">P\u00f6rssin l\u00e4ht\u00f6laskenta<\/span><span class=\"wc-toolcard__desc\">L\u00e4ht\u00f6laskenta avauskelloon.<\/span><\/a><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><\/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-51681","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\/51681","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=51681"}],"version-history":[{"count":0,"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/pages\/51681\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.worldclock.com\/fi\/wp-json\/wp\/v2\/media?parent=51681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}