Excel Dates Gone Wrong? Here's What You're Missing

Excel is an incredibly powerful tool for working with dates and times, but only if you enter them correctly! This video is your essential guide to properly inputting date and time values so you can unlock Excel's full computational power. We walk you through the standard date formats, such as the common U.S. format of month, day, and year (e.g., 1/24/25 or 1-25-2025). The way you type dates depends on your computer’s regional settings. Excel recognizes slashes or dashes and stores valid dates as real numerical values, aligning them to the right of the cell. The Secret Behind Excel Dates: Did you know that Excel counts dates starting from January 1, 1900, which is stored as "day 1"? This numbering system is why you can easily perform calculations, like finding the date 90 days after a specific date, using a simple formula such as =C2+90. Avoid Common Errors! Learn how Excel identifies and rejects impossible entries, such as November 31st. If you enter a date incorrectly, Excel treats it as text, which is left-aligned and cannot be used in date calculations. We also cover how Excel catches invalid entries like February 29th in a non-leap year. A good habit is to widen your date columns to quickly spot any text-based errors. Time Management in Excel: The same powerful logic applies to working with time. We show you quick methods to enter times, like typing 3 space p for 3:00 p.m., or using 24-hour time (e.g., 15:15). Entering times correctly, just like dates, allows you to measure differences, add hours, or perform advanced calculations. By mastering these simple entry methods, you gain access to powerful built-in functions that help you analyze and compute date and time information efficiently. Don't miss the next video where we look at Using Undo and Redo—two simple but powerful tools that can save time and correct mistakes instantly! If you found this video helpful, please subscribe, like, and share to support the channel and help others learn Excel more easily.