In the screen below, each of these function is used to run a simple test on the values in column B: The core of Excel's logical functions are the AND function, the OR function, and the NOT function. If you need a primer on logical formulas, t his video goes through many examples. Logical functions return the boolean values TRUE or FALSE. Logical FunctionsĮxcel's logical functions are a key building block of many advanced formulas. Information Functions ISBLANK, ISERROR, ISNUMBER, and ISFORMULAĮxcel provides many functions for checking the value in a cell, including ISNUMBER, ISTEXT, ISLOGICAL, ISBLANK, ISERROR, and ISFORMULA These functions are sometimes called the "IS" functions, and they all return TRUE or FALSE based on a cell's contents.Įxcel also has ISODD and ISEVEN functions that will test a number to see if it's even or odd.īy the way, the green fill in the screenshot above is applied automatically with a conditional formatting formula. You can use CONVERT to change units for distance, weight, temperature, and much more. However, the CONVERT function is quite useful for everyday unit conversions. Most Engineering functions are pretty technical.you'll find a lot of functions for complex numbers in this section. =WEEKNUM(date) // returns week number in year Use the WEEKNUM function to get the week number in a given year. To figure out the day of week from a date, Excel provides the WEEKDAY function. WEEKDAY returns a number between 1-7 that indicates Sunday, Monday, Tuesday, etc. If you need more flexibility on what days are considered weekends, see the WORKDAY.INTL function and NETWORKDAYS.INTL function. Note: Both functions automatically skip weekends (Saturday and Sunday) and will also skip holidays, if provided. NETWORKDAYS(start,end,holidays) // number of workdays between dates Video: How to calculate due dates with WORKDAY WORKDAY(start,n,holidays) // date n workdays in future To calculate the number of workdays between two dates, you can use NETWORKDAYS. To figure out a date n working days in the future, you can use the WORKDAY function. EOMONTH works the same way, but always returns the last day of the month.ĮOMONTH(date,6) // 6 months forward (end of month) EDATE moves by month and retains the day. You can use the EDATE and EOMONTH functions for this. "2 years and 6 months and 27 days".Ī common task with dates is to shift a date forward (or backward) by a given number of months. DATEDIF can also be configured to get total time in "normalized" denominations, i.e. You can use the DATEDIF function to get time between dates in years, months, or days. You can use the HOUR, MINUTE, and SECOND functions to extract pieces of a time, and you can assemble a TIME from individual components with the TIME function. You can use the DAY, MONTH, and YEAR functions to disassemble any date into its raw components, and the DATE function to put things back together again.Įxcel provides a set of parallel functions for times. If you want a static value, use date and time shortcuts. Note: these are volatile functions and will recalculate with every worksheet change. Technically, the NOW function returns the current date and time, but you can format as time only, as seen below: You can get the current date with the TODAY function and the current date and time with the NOW Function. Download: 101 Excel Functions PDF Date and Time FunctionsĮxcel provides many functions to work with dates and times.
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