To convert a date to a Julian date, use the TEXT and DATEVALUE functions. This format is not based on the Julian calendar. For example, January 1, 2007, is represented as 2007001 and December 31, 2007, is represented as 2007365. Hours, minutes, and seconds since 12:00 AM (00:59:55)Ī Julian date refers to a date format that is a combination of the current year and the number of days since the beginning of the year. To convert hours from a decimal number to the standard time format (hours:minutes:seconds), use the division operator and the TEXT function. To convert hours from the standard time format to a decimal number, use the INT function. Seconds between two times, when the difference does not exceed 60 (0) Minutes between two times, when the difference does not exceed 60 (55) Hours between two times, when the difference does not exceed 24 (4) To present the result in a total that is based on one time unit, use the INT function, or HOUR, MINUTE, or SECOND function. Hours, minutes, and seconds between two times (4:55:00) Hours and minutes between two times (4:55) For this method to work, hours must not exceed 24, and minutes and seconds must not exceed 60. To present the result in the standard time format (hours:minutes:seconds), use the subtraction operator (-) and the TEXT function. Returns the number of days between the dates, ignoring the year part (165)Ĭalculate the difference between two times Returns the number of months between the dates, ignoring the year part (5) Returns the number of days between the two dates (1626) Use the DATEDIF function to perform this calculation. =DATE(YEAR()+1,MONTH()+7,DAY()+5)Ĭalculate the difference between two dates To add a combination of days, months, and years to a date, use the DATE, YEAR, MONTH, and DAY functions. To add a number of years to a date, use the DATE, YEAR, MONTH, and DAY functions. To add a number of months to a date, use the DATE, YEAR, MONTH, and DAY functions. Note: When you manipulate dates, the return type of the calculated column must be set to Date and Time. You can use the ISBLANK formula to find blank fields.įill in your own choices - first is if blank, second if not Returns a dash when the value is an error To display a dash, #N/A, or NA in place of an error value, use the ISERROR function. Returns a dash when the value is zero (-) Second number subtracted from the first (0) To display a blank or a dash, use the IF function. To display a zero, perform a simple calculation. If 15 is greater than 9 or less than 8, then return "OK". Use the IF function to perform this comparison. PickUpTime: DateAdd("h", 3, )ĭisplays in the PickUpTime field a time that is three hours after the value of the ArrivalTime field.You can use the following formulas to test the condition of a statement and return a Yes or No value, to test an alternate value such as OK or Not OK, or to return a blank or dash to represent a null value.Ĭheck if a number is greater than or less than another number You can use these expressions in a calculated field in a query.ĭisplays in the DueDate field a date that is three quarters after the value of the PromisedDate field. You can use these expressions in calculated controls on forms reports, or in query criteria rows.ĭisplays a date that is 10 days before the value of the PromisedDate field.ĭisplays a date that is a month after 31-Jan-03, so the expression will evaluate to 28-Feb-03.ĭisplays a date that is a month after 31-Jan-04, and since 2004 is a leap year, the expression will evaluate to 29-Feb-04.ĭisplays a date that is three quarters after the value of the PromisedDate field for example, if the value of the PromisedDate field is 18-Jun-03, the expression will evaluate to 18-Mar-04.ĭisplays a time that is three hours after the value of the ArrivalTime field. The following table lists examples of expressions that use the DateAdd function to add date and time values.
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