How to ensure the format of the publication date in the Article Schema complies with the specifications?

When defining the publication date in the Article Schema, ensure to use the datePublished property and strictly follow the ISO 8601 standard format to comply with specifications. The ISO 8601 format requires the date part to be "YYYY-MM-DD" (e.g., 2024-03-15). If time is included, a "T" separator and "HH:MM:SS" must be added (e.g., 2024-03-15T09:30:00), and the time zone can be supplemented with "±HH:MM" (e.g., 2024-03-15T09:30:00+08:00). Common errors include using non-standard formats such as "MM/DD/YYYY" or "DD-MM-YYYY", or omitting the first two digits of the year (e.g., 24-03-15). These issues may prevent search engines from correctly parsing the publication time, affecting the judgment of content timeliness. It is recommended to use tools like Google Rich Results Test to validate Schema markup and ensure the datePublished value is in the correct format. Regularly check the date synchronization when updating content to avoid reducing the credibility of the content in search results due to format errors.