<p>The <b>YEARFRAC</b> function is one of the date and time functions. It is used to return the fraction of a year represented by the number of whole days from start-date to end-date calculated on the specified basis.</p>
<pstyle="text-indent: 50px;"><b><em>start-date</em></b> is a number representing the first date of the period, entered using the <ahref="Date.htm"onclick="onhyperlinkclick(this)">Date</a> function or other date and time function.</p>
<pstyle="text-indent: 50px;"><b><em>end-date</em></b> is a number representing the last date of the period, entered using the <ahref="Date.htm"onclick="onhyperlinkclick(this)">Date</a> function or other date and time function.</p>
<pstyle="text-indent: 50px;"><b><em>basis</em></b> is the day count basis to use, a numeric value greater than or equal to 0, but less than or equal to 4. It can be one of the following:</p>
<tablestyle="width: 40%">
<tr>
<td><b>Numeric value</b></td>
<td><b>Count basis</b></td>
</tr>
<tr>
<td>0</td>
<td>US (NASD) 30/360</td>
</tr>
<tr>
<td>1</td>
<td>Actual/actual</td>
</tr>
<tr>
<td>2</td>
<td>Actual/360</td>
</tr>
<tr>
<td>3</td>
<td>Actual/365</td>
</tr>
<tr>
<td>4</td>
<td>European 30/360</td>
</tr>
</table>
<pclass="note"><b>Note</b>: if the <b><em>start-date</em></b>, <b><em>end-date</em></b> or <b><em>basis</em></b> is a decimal value, the function will ignore the numbers to the right of the decimal point.
</p>
<p>To apply the <b>YEARFRAC</b> function,</p>
<ol>
<li>select the cell where you wish to display the result,</li>
