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


To check whether the date in DateTimeIndex is the last day of the quarter, use the DateTimeIndex.is_quarter_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. The timezone is Australia/Adelaide −

datetimeindex = pd.date_range('2021-6-15 02:30:50', 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 quarter −

print("\nCheck whether the date in DateTimeIndex is the last day of the quarter...\n",
datetimeindex.is_quarter_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('2021-6-15 02:30:50', 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 quarter
# Result is based on the following quarters of an year:
# Quarter 1 = 1st January to 31st March
# Quarter 2 = 1st April to 30th June
# Quarter 3 = 1st July to 30th September
# Quarter 4 = 1st October to 31st December
print("\nCheck whether the date in DateTimeIndex is the last day of the quarter...\n",
datetimeindex.is_quarter_end)

Output

This will produce the following code −

DateTimeIndex...
DatetimeIndex(['2021-06-15 02:30:50+09:30', '2021-06-30 02:30:50+09:30',
'2021-07-15 02:30:50+09:30', '2021-07-30 02:30:50+09:30',
'2021-08-14 02:30:50+09:30', '2021-08-29 02:30:50+09:30'],
dtype='datetime64[ns, Australia/Adelaide]', freq='15D')
DateTimeIndex frequency...
<15 * Days>

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

Updated on: 18-Oct-2021

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