Python Pandas - Indicate whether the date in DateTimeIndex is the last day of the month


To check whether the date in DateTimeIndex is the last day of the month, use the DateTimeIndex.is_month_end property.

At first, import the required libraries −

import pandas as pd

Create a DatetimeIndex with period 6 and frequency as D i.e. days −

datetimeindex = pd.date_range('2021-9-15 06:40:35', periods=6, tz='Australia/Adelaide', freq='15D')

Display DateTimeIndex −

print("DateTimeIndex...\n", datetimeindex)

Check whether the date in DateTimeIndex is the last day of the month −

print("\nCheck whether the date in DateTimeIndex is the last day of the month...\n",
datetimeindex.is_month_end)

Example

Following is the code −

import pandas as pd

# DatetimeIndex with period 6 and frequency as D i.e. days
# The timezone is Australia/Adelaide
datetimeindex = pd.date_range('2021-9-15 06:40:35', periods=6, tz='Australia/Adelaide', freq='15D')

# display DateTimeIndex
print("DateTimeIndex...\n", datetimeindex)

# display DateTimeIndex frequency
print("DateTimeIndex frequency...\n", datetimeindex.freq)

# Check whether the date in DateTimeIndex is the last day of the month
print("\nCheck whether the date in DateTimeIndex is the last day of the month...\n",
datetimeindex.is_month_end)

Output

This will produce the following code −

DateTimeIndex...
DatetimeIndex(['2021-09-15 06:40:35+09:30', '2021-09-30 06:40:35+09:30',
'2021-10-15 06:40:35+10:30', '2021-10-30 06:40:35+10:30',
'2021-11-14 06:40:35+10:30', '2021-11-29 06:40:35+10:30'],
dtype='datetime64[ns, Australia/Adelaide]', freq='15D')
DateTimeIndex frequency...
<15 * Days>

Check whether the date in DateTimeIndex is the last day of the month...
[False True False False False False]

Updated on: 18-Oct-2021

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