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## YEARFRAC

The result is the number of the years (including fractional part) between StartDate and EndDate.

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

#### Syntax

YEARFRAC(StartDate; EndDate [; Basis])

StartDate and EndDate are two date values.

Basis (optional) is chosen from a list of options and indicates how the year is to be calculated.

आधार | गणना
0 or missing | US method (NASD), 12 months of 30 days each
1 | वर्ष में दिनों की सुनिश्चित संख्या, माह में दिनों की सुनिश्चित संख्या
2 | माह में दिनों की सुनिश्चित संख्या, वर्ष में 360 दिन
3 | माह में दिनों की सुनिश्चित संख्या, वर्ष में 365 दिन होते हैं
4 | यूरोपीय विधि, 12 महीने प्रत्येक में 30 दिन

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 fraction of the year 2008 lies between 2008-01-01 and 2008-07-01?

=YEARFRAC("2008-01-01"; "2008-07-01";0) returns 0.50.

Related Topics

Date & Time Functions

DATE

DATEDIF

DATEVALUE

DAY

DAYS

DAYS360

EASTERSUNDAY

EDATE

EOMONTH

HOUR

ISOWEEKNUM

MINUTE

MONTH

NETWORKDAYS

NETWORKDAYS.INTL

NOW

SECOND

TIME

TIMEVALUE

TODAY

WEEKDAY

WEEKNUM

WEEKNUM_EXCEL2003

WEEKNUM_OOO

WORKDAY

WORKDAY.INTL

YEAR

YEARFRAC