DAYOFYEAR function
Returns an integer, 1 to 366, representing the sequential day of the year in datetime or expression. The DAYOFYEAR function uses the Gregorian calendar.
Syntax
|
DAYOFYEAR("datetime"|expression[,lcid]) | |
|
datetime |
Any string commonly recognized as a date and time or a reference to a cell containing a date and time. |
|
expression |
Any expression that yields a date and time. |
|
lcid |
Optional argument. Specifies the locale identifier to be used in evaluating a nonlocal datetime. The locale identifier is a number described in the system header files. |
Remarks
Any time component in datetime or expression is discarded.
The result corresponds to January 1 to December 31. No rounding is done. If datetime is missing or cannot be interpreted as a valid date or time, the function returns an error.
The DAYOFYEAR function also accepts a single number value for expression where the integer portion of the result represents the number of days since December 30, 1899.
Example 1
DAYOFYEAR("May 30, 1997 3:45:24 PM")
Returns 150.
Example 2
DAYOFYEAR(DATEVALUE("May 30, 1997")+7 ed.)
Returns 157.
Example 3
DAYOFYEAR(35580.6337)
Returns 150.