Power BI Cloud and Power BI Desktop have different behavior when it comes to culture settings. Power BI Desktop uses the local system settings for culture, while Power BI Cloud follows the region set in your Power BI service account. This difference can lead to discrepancies in date formats, number separators, and other locale-specific settings. To ensure consistency, you may need to adjust the culture settings manually in Power BI Desktop and ensure your account region aligns with your desired culture in Power BI Cloud.