{"id":6488,"date":"2025-07-15T13:34:48","date_gmt":"2025-07-15T13:34:48","guid":{"rendered":"https:\/\/functiontranslator.com\/jour\/"},"modified":"2021-02-26T08:04:24","modified_gmt":"2021-02-26T08:04:24","slug":"day","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/fr\/day\/","title":{"rendered":"JOUR"},"content":{"rendered":"<p>La fonction JOUR dans Microsoft Excel et Google Sheets est extr\u00eamement utile pour extraire le jour d&rsquo;une date donn\u00e9e. Elle permet aux utilisateurs de manipuler et analyser des donn\u00e9es contenant des dates de mani\u00e8re plus d\u00e9taill\u00e9e. Dans cet article, nous explorerons le fonctionnement de cette fonction, son syntaxe et comment l&rsquo;utiliser \u00e0 travers plusieurs exemples pratiques.<\/p>\n<h2>Syntaxe de la fonction JOUR<\/h2>\n<p>La syntaxe de la fonction JOUR est relativement simple :<\/p>\n<pre><code>=JOUR(date)<\/code><\/pre>\n<p>O\u00f9 <code>date<\/code> repr\u00e9sente la date dont vous souhaitez extraire le jour. Cette date doit \u00eatre une r\u00e9f\u00e9rence \u00e0 une cellule contenant une date, une date retourn\u00e9e par une autre fonction ou peut \u00eatre saisie directement sous forme de texte (\u00e0 condition qu&rsquo;elle soit reconnue comme une date valide par Excel ou Google Sheets).<\/p>\n<h2>Exemples d&rsquo;utilisation<\/h2>\n<ul>\n<li>\n<p><strong>Extraction simple<\/strong> : Si vous avez une date comme \u00ab\u00a02023-12-01\u00a0\u00bb dans la cellule A1, et que vous utilisez la formule <code>=JOUR(A1)<\/code>, le r\u00e9sultat sera 1, car c&rsquo;est le premier jour du mois de d\u00e9cembre 2023.<\/p>\n<\/li>\n<li>\n<p><strong>Date saisie directement<\/strong> : Vous pouvez \u00e9galement utiliser la fonction en ins\u00e9rant directement la date dans la formule, comme ceci : <code>=JOUR(\"2023-12-15\")<\/code>. Cela retournera 15, car c&rsquo;est le quinzi\u00e8me jour du mois indiqu\u00e9.<\/p>\n<\/li>\n<\/ul>\n<h2>Applications pratiques<\/h2>\n<p>Explorons maintenant quelques sc\u00e9narios o\u00f9 la fonction JOUR peut \u00eatre particuli\u00e8rement utile.<\/p>\n<h2>Analyse de l&rsquo;activit\u00e9 quotidienne<\/h2>\n<p>Supposons que vous disposez d&rsquo;un tableau de donn\u00e9es contenant des dates et des valeurs correspondantes \u00e0 des ventes journali\u00e8res et que vous souhaitez analyser les performances d&rsquo;un jour sp\u00e9cifique dans le mois. Vous pouvez utiliser la fonction JOUR pour filtrer ces donn\u00e9es par jour.<\/p>\n<p>Exemple de formule :<\/p>\n<pre><code>Si JOUR(A2)=15, alors afficher la valeur de vente B2.<\/code><\/pre>\n<p>Cette formule aidera \u00e0 examiner les ventes effectu\u00e9es le 15\u00e8me jour de chaque mois.<\/p>\n<h2>Organisation des anniversaires<\/h2>\n<p>Dans un registre d&rsquo;anniversaires, pour rappeler ou organiser des \u00e9v\u00e9nements, savoir qui sont n\u00e9s un certain jour peut \u00eatre crucial. La fonction JOUR permet de trier ou filtrer les anniversaires par jour.<\/p>\n<p>Exemple de formule :<\/p>\n<pre><code>Si JOUR(A2)=10, \"Joyeux anniversaire\"<\/code><\/pre>\n<p>Cette formule affichera un message de f\u00e9licitation pour les personnes dont l&rsquo;anniversaire tombe le dixi\u00e8me jour du mois de leur date de naissance.<\/p>\n<p>En conclusion, que vous travailliez avec des s\u00e9ries temporelles, organisiez des \u00e9v\u00e9nements selon des dates sp\u00e9cifiques, ou simplement analysiez des donn\u00e9es associ\u00e9es \u00e0 des jours sp\u00e9cifiques, la fonction JOUR est un outil indispensable pour tout utilisateur d&rsquo;Excel et Google Sheets souhaitant approfondir son analyse des donn\u00e9es bas\u00e9es sur les dates.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Convertit un num\u00e9ro de s\u00e9rie en jour du mois<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[321],"tags":[],"class_list":["post-6488","post","type-post","status-publish","format-standard","hentry","category-date-et-heure"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fonction DAY (JOUR) dans Excel : comment \u00e7a marche, exemples et syntaxe<\/title>\n<meta name=\"description\" content=\"Pr\u00e9sentation de la fonction DAY (JOUR) d\u2019Excel et Google Sheets. 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