Excel Date and Time Formulas: Calculating Week Numbers and Calendar Data

Working with dates in Excel can be frustrating when dealing with different regional formats, leap years, or calculating specific week numbers for business reporting. This text-only course guides you through the foundational concepts of how Excel handles dates, teaching you how to confidently calculate week numbers and build automated calendar reports. You will learn to: Understand how Excel stores dates and times as serial numbers to avoid formatting errors; Calculate exact week numbers of the year using standard and ISO week formulas; Determine start and end dates for any given week or month automatically; Apply modern dynamic arrays to generate continuous date ranges instantly; Clean and transform inconsistent date formats using basic Power Query techniques; Build practical weekly tracking sheets and seasonal data summaries. You will start with core date concepts and terminology before moving into step-by-step written explanations of key functions like WEEKNUM, ISOWEEKNUM, and modern array formulas. This course is designed for beginners who want to master date-based calculations in Excel, and no prior advanced formula experience is required. Start organizing and analyzing your date-based data with precision today.