{"id":3546,"date":"2024-03-13T07:06:50","date_gmt":"2024-03-13T07:06:50","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-datediff-be-used-in-sqlserver\/"},"modified":"2025-07-30T17:51:56","modified_gmt":"2025-07-30T17:51:56","slug":"how-can-datediff-be-used-in-sqlserver","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-datediff-be-used-in-sqlserver\/","title":{"rendered":"SQL Server DATEDIFF Function Explained"},"content":{"rendered":"

In SQL Server, the DATEDIFF function is used to calculate the difference in time between two dates. The basic syntax is as follows:<\/p>\n

DATEDIFF(datepart, startdate, enddate)\r\n<\/code><\/pre>\n
One of the values that can be specified for the datepart parameter is the unit for calculating the time difference.<\/p>\n
    \n
  1. \u5e74 (nian) – year<\/li>\n
  2. quarter – a period of three months<\/li>\n
  3. one month<\/li>\n
  4. dayofyear (the day number of the year)<\/li>\n
  5. \u65e5 means day in Japanese.<\/li>\n
  6. week<\/li>\n
  7. hour<\/li>\n
  8. minute – a unit of time equal to 60 seconds<\/li>\n
  9. One option:
    \n– The unit of time equal to 1\/60th of a minute.<\/li>\n
  10. tiny fragment of time<\/li>\n<\/ol>\n
    The startdate and enddate parameters are the two date or time values being compared.<\/p>\n
    For example, to calculate the difference in days between two dates, you can use the following statement:<\/p>\n
    SELECT<\/span> DATEDIFF(day<\/span>, '2022-01-01'<\/span>, '2022-01-31'<\/span>)\r\n<\/code><\/pre>\n
    This will return 31, indicating a 31-day difference between January 1, 2022 and January 31, 2022.<\/p>\n","protected":false},"excerpt":{"rendered":"
    In SQL Server, the DATEDIFF function is used to calculate the difference in time between two dates. The basic syntax is as follows: DATEDIFF(datepart, startdate, enddate) One of the values that can be specified for the datepart parameter is the unit for calculating the time difference. \u5e74 (nian) – year quarter – a period of […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[2002,2001,572,569,2003],"class_list":["post-3546","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-date-functions","tag-datediff","tag-sql-server","tag-sql-tutorial","tag-t-sql"],"yoast_head":"\nSQL Server DATEDIFF Function Explained - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Master SQL Server's DATEDIFF function to calculate date differences. 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