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Pandas Series dt.daysinmonth | Get Number of Days in Month in Pandas Series

Last Updated : 11 Jul, 2025

The dt.daysinmonth attribute returns the number of days in the month for the given DateTime series object.

Example

Output :

👁 daysinmonth attribute output

Syntax

Syntax: Series.dt.daysinmonth

Parameter: None

Returns: Series of  integers representing days in a month

How to Get the Number of Days in a Month in Pandas Series

To get the number of days in a month in the Pandas Series DateTime object, we use the dt.daysinmonth attribute of the Pandas library in Python.

Let us understand it with an example:

Example:

Use the dt.daysinmonth attribute to find the number of days in the month of the given date in the series object.

Output :

👁 datetime series created

Now we will use dt.daysinmonth attribute to find the number of days in the month for the given date.

Example 3

Output :

👁 day in month returned

As we can see in the output, the dt.daysinmonth attribute has successfully accessed and returned the number of days in the month for the given date.

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