Python | Pandas Series.dt.is_leap_year

Series.dt can be used to access the values of the series as datetimelike and return several properties. Pandas Series.dt.is_leap_year attribute return a boolean indicator if the date belongs to a leap year.

Syntax: Series.dt.is_leap_year Parameter : None Returns : numpy array

Example #1: Use Series.dt.is_leap_year attribute to check if the dates in the underlying data of the given series object belongs to a leap year. Python3

# importing pandas as pd
import pandas as pd

# Creating the Series
sr = pd.Series(['2012-12-31', '2019-1-1 12:30', '2008-02-2 10:30',
               '2010-1-1 09:25', '2019-12-31 00:00'])

# Creating the index
idx = ['Day 1', 'Day 2', 'Day 3', 'Day 4', 'Day 5']

# set the index
sr.index = idx

# Convert the underlying data to datetime 
sr = pd.to_datetime(sr)

# Print the series
print(sr)

Output : Now we will use Series.dt.is_leap_year attribute to check if the dates in the given series object belongs to a leap year. Python3

# check if dates given
# belongs to a leap year.
result = sr.dt.is_leap_year

# print the result
print(result)

Output : As we can see in the output, the Series.dt.is_leap_year attribute has successfully accessed and returned boolean values indicating whether the dates in the given series object belongs to a leap year. Example #2 : Use Series.dt.is_leap_year attribute to check if the dates in the underlying data of the given series object belongs to a leap year. Python3

# importing pandas as pd
import pandas as pd

# Creating the Series
sr = pd.Series(pd.date_range('2012-12-31 00:00', periods = 5, freq = 'D'))

# Creating the index
idx = ['Day 1', 'Day 2', 'Day 3', 'Day 4', 'Day 5']

# set the index
sr.index = idx

# Print the series
print(sr)

Output : Now we will use Series.dt.is_leap_year attribute to check if the dates in the given series object belongs to a leap year. Python3

# check if dates given
# belongs to a leap year.
result = sr.dt.is_leap_year

# print the result
print(result)

Output : As we can see in the output, the Series.dt.is_leap_year attribute has successfully accessed and returned boolean values indicating whether the dates in the given series object belongs to a leap year.