Pandas Series dt.is_quarter_start | Check if a Date is First day of Quarter

Pandas dt.is_quarter_start attribute returns a boolean value indicating whether the date is the first day of a quarter.

Example:

Output :

👁 dt.is_quarter_start output

Syntax

Syntax: Series.dt.is_quarter_start 

Parameter: None 

Returns: Series with boolean values

How to Check if Date is First in it's Quarter in Pandas Series

To check if a Date is the first date in its respective quarter in the Pandas Series, we use the dt.is_quarter_start attribute of the Pandas Library in Python.

Let us understand it better with an example:

Example

Use the Series.dt.is_quarter_start attribute to check if the dates in the underlying data of the given series object are the first day of the quarter.

Output :

👁 datetime series created

Now we will use the dt.is_quarter_start attribute to check if the dates in the given series object is the first day of the quarter or not.

Output :

👁 checked if date is first in quarter

As we can see in the output, the dt.is_quarter_start attribute has successfully accessed and returned boolean values indicating whether the dates are the first day of the quarter.