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The function DateDiff only returns a whole number of the units being subtracted, and the precision is given in the unit specified. Since the Now is later than Today the result will be negative.ĭifference of dates with fractional results Returns the difference between the current date/time and the current date only (no time) in minutes. Returns the difference between the two values in Months

Returns the difference between the two units in the default units of Days Subtracts 30 minutes from the current date and time. Simple DateAdd FormulaĪdds three days (default units) to the current date and time.Īdd four hours to the current date and time.Īdds one month to the current date, without time as Today doesn't return a time component. In all of these examples, assume that the current date and time is July 15, 2013, 1:02 PM. By default, the current date/time is used. Date/time value for which to return the offset. The type of Units to subtract: Milliseconds, Seconds, Minutes, Hours, Days, Months, Quarters, or Years. If not specified, Days are used.ĭateDiff( StartDateTime, EndDateTime ) The type of Units to add: Milliseconds, Seconds, Minutes, Hours, Days, Months, Quarters, or Years. Number, in Units, to add to the DateTime. Adding TimeZoneOffset will convert a local time to UTC, and subtracting it (adding the negative) will convert from UTC to local time.Īlso see Date, Time, and DateTime data types and working with dates and times for more information. You can use DateAdd with the TimeZoneOffset to convert between the user's local time and UTC (Coordinated Universal Time). The TimeZoneOffset function returns the number of minutes between the user's local time and UTC (Coordinated Universal Time). By default, both functions use Days as units. The result is a whole number of units.įor both functions, units can be Milliseconds, Seconds, Minutes, Hours, Days, Months, Quarters, or Years. The DateDiff function returns the difference between two date/time values. You can also subtract a number of units from a date/time value by specifying a negative value. The DateAdd function adds a number of units to a date/time value.

Adds to or finds the difference in date/time values and converts between local time and UTC.