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## EDATE

The result is a date which is a number of months away from the start date. Only months are considered; days are not used for calculation.

This function is part of the Open Document Format for Office Applications (OpenDocument) standard Version 1.2. (ISO/IEC 26300:2-2015)

#### Syntax

EDATE(StartDate; Months)

StartDate 是指日期。

Months 是指開始日期之前 (負值) 或之後 (正值) 的月數。

When entering dates as part of formulas, slashes or dashes used as date separators are interpreted as arithmetic operators. Therefore, dates entered in this format are not recognized as dates and result in erroneous calculations. To keep dates from being interpreted as parts of formulas use the DATE function, for example, DATE(1954;7;20), or place the date in quotation marks and use the ISO 8601 notation, for example, "1954-07-20". Avoid using locale dependent date formats such as "07/20/54", the calculation may produce errors if the document is loaded under different locale settings.

Unambiguous conversion is possible for ISO 8601 dates and times in their extended formats with separators. If a #VALUE! error occurs, then unselect Generate #VALUE! error in LibreOffice - Preferences Tools - Options - LibreOffice Calc - Formula, button Details... in section "Detailed Calculation Settings", Conversion from text to number list box.

#### Example

What date is one month prior to 2001-03-31?

=EOMONTH(DATE(2001;9;14);6) 會傳回序號 37346。格式化為日期，即為 2002-03-31。

相關主題

Date & Time Functions

DATE

[text/scalc/01/func_datedif.xhp#datedif not found].

DATEVALUE

DAY

DAYS

DAYS360

EASTERSUNDAY

EDATE

EOMONTH

HOUR

[text/scalc/01/func_isoweeknum.xhp#isoweeknum not found].

MINUTE

MONTH

NETWORKDAYS

NETWORKDAYS.INTL

NOW

SECOND

TIME

TIMEVALUE

TODAY

WEEKDAY

WEEKNUM

WEEKNUM_ADD

[text/scalc/01/func_weeknum_ooo.xhp#weeknum_ooo not found].

WORKDAY

WORKDAY.INTL

YEAR

YEARFRAC