Learn how to create random decimal numbers and time intervals inside Excel using formula logic that’s scalable, reusable, and deceptively simple. Your workbook automations just got smarter.
This Excel video teaches beginners how to generate random times within specific intervals using simple formulas.
By combining the RAND function, which produces random decimal numbers between 0 and 1, with the FLOOR function, which rounds down numbers to the nearest interval, you can create random times. For example, the formula =FLOOR(RAND(),"0:01") generates a random time at one-minute intervals. Excel represents dates as numbers, with 24 hours being equivalent to 1 day, enabling you to convert hours into Excel's time values.
By using the principles of multiplication and addition, you can limit the range of random times generated. For instance, the formula =RAND()*("11:00"-"6:00")+"6:00" produces random times between 6 AM and 11 PM. This technique extends beyond times and can be applied to other numerical scenarios as well.
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