{"id":1441,"date":"2018-07-04T14:57:40","date_gmt":"2018-07-04T14:57:40","guid":{"rendered":"http:\/\/officetuts.net\/excel\/?p=1441"},"modified":"2023-11-03T14:52:51","modified_gmt":"2023-11-03T14:52:51","slug":"weeknum","status":"publish","type":"post","link":"https:\/\/officetuts.net\/excel\/functions\/weeknum\/","title":{"rendered":"WEEKNUM function"},"content":{"rendered":"\n<p>The WEEKNUM function in Excel is used to determine the week number of a given date. It helps you find out which week of the year a particular date falls in. This function can be especially useful in various scheduling and date-related tasks.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Syntax<\/h2>\n\n\n\n<p><strong>WEEKNUM(serial_number, [return_type])<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Arguments<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>serial_number <\/strong><\/td><td>The date for which you want to find the week number. It can be entered as a date in a recognized format, a reference to a cell containing a date, or a formula that results in a date.<\/td><\/tr><tr><td><strong>[return_type]<\/strong><\/td><td>A number that specifies which day of the week is considered the first day of the week. This argument can take on values from 1 to 21, with different values representing different systems for determining the first day of the week. The default is 1, where Sunday is considered the first day.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Use<\/h2>\n\n\n\n<p>The WEEKNUM function is relatively simple to use. You provide it with a date, and it returns the week number for that date. Here&#8217;s the basic usage:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>=WEEKNUM(serial_number, &#91;return_type])<\/code><\/pre>\n\n\n\n<p>Let&#8217;s look at a few examples:<\/p>\n\n\n\n<p><strong>Example 1:<\/strong><\/p>\n\n\n\n<p>If you want to find the week number for a date in cell A1, where Sunday is considered the first day of the week, you can use the following formula:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>=WEEKNUM(A1,1)<\/code><\/pre>\n\n\n\n<p>This formula will return the week number for the date in cell A1 according to the system where Sunday is the first day of the week.<\/p>\n\n\n\n<p><strong>Example 2:<\/strong><\/p>\n\n\n\n<p>If you have a date like &#8220;2023-11-03&#8221; and want to find the week number, you can directly enter the date in the formula:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>=WEEKNUM(\"2023-11-03\",1)<\/code><\/pre>\n\n\n\n<p>This formula will return the week number for the given date, considering Sunday as the first day of the week.<\/p>\n\n\n\n<p><strong>Example 3:<\/strong><\/p>\n\n\n\n<p>If you don&#8217;t specify the return_type argument, it defaults to 1 (Sunday as the first day of the week). So, you can simply use the formula like this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>=WEEKNUM(A1)<\/code><\/pre>\n\n\n\n<p>It will return the week number with Sunday as the first day.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Additional Information<\/h2>\n\n\n\n<p>The WEEKNUM function is versatile and can be helpful in various situations where you need to work with date-related data. Remember that the [return_type] argument is optional and can be adjusted according to your specific needs.<\/p>\n\n\n\n<p>If you want to learn more about the [return_type] values and how they affect the result, you can check the official Microsoft Excel documentation or other reliable sources for a detailed explanation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The WEEKNUM function in Excel is used to determine the week number of a given date. It helps you find out which week&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[180],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>WEEKNUM function<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/officetuts.net\/excel\/functions\/weeknum\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WEEKNUM function\" \/>\n<meta property=\"og:description\" content=\"The WEEKNUM function in Excel is used to determine the week number of a given date. 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