The time since your date of birth will be calculated and displayed in the various units. The number of days between today's date and the specified date is displayed in cell A3.Įxperiment with some additional formulas: in A4 enter =A3*24 to calculate the hours, in A5 enter =A4*60 for the minutes, and in A6 enter =A5*60 for seconds. To display the result as a number, set the number format to '-1,234' and close the dialog with the OK button. The format is set to 'General', which causes the result of a calculation containing date entries to be displayed as a date. On the Numbers tab, the 'Number' category will appear already highlighted. Place the cursor in cell A3, right-click to open a context menu and choose Format Cells. Since the result should show the difference between two dates as a number of days, you must format cell A3 as a number. In a spreadsheet, enter your birthday in cell A1.Įnter the following formula in cell A3: =NOW()-A1Īfter pressing the Enter key you will see the result in date format. As an example, to find out exactly how old you are in seconds or hours, follow the following steps: In LibreOffice Calc, you can perform calculations with current date and time values.

Libre calculator