{"id":51637,"date":"2026-11-01T09:13:11","date_gmt":"2026-11-01T09:13:11","guid":{"rendered":"https:\/\/www.worldclock.com\/jetlag-beregner\/"},"modified":"2026-11-01T09:13:11","modified_gmt":"2026-11-01T09:13:11","slug":"jetlag-beregner","status":"publish","type":"page","link":"https:\/\/www.worldclock.com\/da\/jetlag-beregner\/","title":{"rendered":"Jetlag-beregner"},"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\/da\/\">Verdensur<\/a><\/li><li><a href=\"https:\/\/www.worldclock.com\/da\/vaerktoejer\/\">Tidsv\u00e6rkt\u00f8jer<\/a><\/li><li><span aria-current=\"page\">Jetlag-beregner<\/span><\/li><\/ol><\/nav><p class=\"wc-eyebrow\"><span aria-hidden=\"true\">\u2708\ufe0f<\/span> Gratis v\u00e6rkt\u00f8j<\/p><h1 class=\"wc-thero__title\">Jetlag-beregner<\/h1><p class=\"wc-thero__lead\">Indtast, hvor du flyver fra og til, og f\u00e5 en plan dag for dag: hvorn\u00e5r du skal sove, hvorn\u00e5r du skal s\u00f8ge lys, og hvorn\u00e5r du skal undg\u00e5 det.<\/p><\/div><\/header><div class=\"wc-tool\"><div class=\"wc-jet\" data-wc-tool=\"jetlag\" data-from=\"{&quot;n&quot;:&quot;London&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>Flyver fra<\/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=\"Skift afrejseby\u2026\" aria-label=\"Skift afrejseby\u2026\" autocomplete=\"off\"><ul class=\"wc-search__results\" hidden><\/ul><\/div><\/div><div class=\"wc-field\"><span>Flyver til<\/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=\"Skift destination\u2026\" aria-label=\"Skift destination\u2026\" autocomplete=\"off\"><ul class=\"wc-search__results\" hidden><\/ul><\/div><\/div><label class=\"wc-field\"><span>Ankomstdato<\/span><input type=\"date\" data-date><\/label><label class=\"wc-field\"><span>Du sover normalt<\/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\">Dette er generel vejledning baseret p\u00e5, hvordan d\u00f8gnuret reagerer p\u00e5 lys \u2013 ikke l\u00e6gefaglig r\u00e5dgivning. Tal med en l\u00e6ge, f\u00f8r du bruger melatonin eller sovemedicin.<\/p><\/div><\/div><section class=\"wc-section wc-tool-info\"><div class=\"wc-prose\"><h2>S\u00e5dan virker jetlag-planen<\/h2><p>Jetlag opst\u00e5r, fordi dit d\u00f8gnur (din d\u00f8gnrytme) bliver ved med at f\u00f8lge hjemmetiden, efter du er landet. Det rykker sig med cirka <strong>1 time om dagen, n\u00e5r du flyver mod \u00f8st<\/strong>, og cirka <strong>1,5 time om dagen, n\u00e5r du flyver mod vest<\/strong> \u2013 derfor f\u00f8les det som regel v\u00e6rre at flyve mod \u00f8st.<\/p><p>Lys er det st\u00e6rkeste signal til at nulstille uret. Lys i timerne <em>efter<\/em> kroppens laveste temperatur (cirka to timer f\u00f8r du normalt v\u00e5gner) rykker dit ur tidligere; lys i timerne <em>f\u00f8r<\/em> rykker det senere. Planen ovenfor tilrettel\u00e6gger lys og m\u00f8rke, s\u00e5 dit ur rykker i den rigtige retning \u2013 og advarer dig, n\u00e5r morgenlys ville skubbe det den forkerte vej efter en lang flyvning mod \u00f8st.<\/p><h2>Hurtige tips<\/h2><ul><li>Ryk din sengetid 1 time om dagen mod destinationens tid i 2\u20133 dage, f\u00f8r du flyver.<\/li><li>Drik vand, og g\u00e5 let til alkohol og koffein p\u00e5 flyet.<\/li><li>Spis m\u00e5ltiderne efter lokal tid ved ankomst, og hold lure under 30 minutter.<\/li><\/ul><\/div><\/section><section class=\"wc-section wc-faq\"><h2>Ofte stillede sp\u00f8rgsm\u00e5l<\/h2><details><summary>Hvor l\u00e6nge varer jetlag?<\/summary><p>Som tommelfingerregel cirka \u00e9n dag pr. krydset tidszone, n\u00e5r du flyver mod \u00f8st, og lidt mindre \u2013 omkring to dage pr. tre tidszoner \u2013 n\u00e5r du flyver mod vest.<\/p><\/details><details><summary>Er jetlag v\u00e6rst, n\u00e5r man flyver mod \u00f8st eller vest?<\/summary><p>Mod \u00f8st. At flyve mod \u00f8st betyder, at du skal falde i s\u00f8vn tidligere, end kroppen vil, og d\u00f8gnuret er langsommere til at rykke frem end tilbage.<\/p><\/details><details><summary>F\u00e5r man jetlag p\u00e5 flyvninger mod nord eller syd?<\/summary><p>Nej. Jetlag skyldes, at man krydser tidszoner. En lang flyvning fra Europa til Sydafrika giver tr\u00e6thed, men kun lidt eller ingen jetlag, fordi tidsforskellen kun er en time eller to.<\/p><\/details><\/section><section class=\"wc-section wc-tools-grid\"><div class=\"wc-section__head\"><h2>Flere gratis tidsv\u00e6rkt\u00f8jer<\/h2><a href=\"https:\/\/www.worldclock.com\/da\/vaerktoejer\/\">Alle v\u00e6rkt\u00f8jer \u2192<\/a><\/div><div class=\"wc-toolcards\"><a class=\"wc-toolcard wc-toolcard--hours\" href=\"https:\/\/www.worldclock.com\/da\/timeberegner\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\u231b<\/span><span class=\"wc-toolcard__name\">Timeberegner<\/span><span class=\"wc-toolcard__desc\">Timer mellem to klokkesl\u00e6t.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--timecard\" href=\"https:\/\/www.worldclock.com\/da\/timeregnskab\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\uddc2\ufe0f<\/span><span class=\"wc-toolcard__name\">Timeregnskab<\/span><span class=\"wc-toolcard__desc\">Ugentlige timer, overarbejde og l\u00f8n.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--decimal\" href=\"https:\/\/www.worldclock.com\/da\/omregn-decimaltimer\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd22<\/span><span class=\"wc-toolcard__name\">Omregning til decimaltimer<\/span><span class=\"wc-toolcard__desc\">Timer:minutter \u21c4 decimaltal.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--pomodoro\" href=\"https:\/\/www.worldclock.com\/da\/pomodoro-timer\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf45<\/span><span class=\"wc-toolcard__name\">Pomodoro-timer<\/span><span class=\"wc-toolcard__desc\">Fokussessioner p\u00e5 25 minutter.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--sleep\" href=\"https:\/\/www.worldclock.com\/da\/soevnberegner\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\ude34<\/span><span class=\"wc-toolcard__name\">S\u00f8vnberegner<\/span><span class=\"wc-toolcard__desc\">Bedste sengetid og opv\u00e5gning.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--markets\" href=\"https:\/\/www.worldclock.com\/da\/boersens-aabningstider\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udcc8<\/span><span class=\"wc-toolcard__name\">B\u00f8rsernes \u00e5bningstider &amp; kontortider<\/span><span class=\"wc-toolcard__desc\">Har b\u00f8rsen \u00e5bent lige nu?<\/span><\/a><a class=\"wc-toolcard wc-toolcard--bell\" href=\"https:\/\/www.worldclock.com\/da\/nedtaelling-til-boersen\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd14<\/span><span class=\"wc-toolcard__name\">Nedt\u00e6lling til b\u00f8rsen<\/span><span class=\"wc-toolcard__desc\">Nedt\u00e6lling til \u00e5bningsklokken.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--converter\" href=\"https:\/\/www.worldclock.com\/da\/tidszoneomregner\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd01<\/span><span class=\"wc-toolcard__name\">Tidszoneomregner<\/span><span class=\"wc-toolcard__desc\">Omregn et tidspunkt mellem alle byer.<\/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-51637","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\/da\/author\/clocker\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/www.worldclock.com\/da\/wp-json\/wp\/v2\/pages\/51637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.worldclock.com\/da\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.worldclock.com\/da\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/da\/wp-json\/wp\/v2\/comments?post=51637"}],"version-history":[{"count":0,"href":"https:\/\/www.worldclock.com\/da\/wp-json\/wp\/v2\/pages\/51637\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.worldclock.com\/da\/wp-json\/wp\/v2\/media?parent=51637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}