How to get the last day of month in Python

To get the last day of a month in Python, you can use the calendar.monthrange() function from the calendar module in the Python standard library. The calendar.monthrange() function takes two arguments, the year and the month, and returns a tuple containing the weekday of the first day of the month and the number of days in the month.

Here's an example:

import calendar

# The input year and month
year = 2023
month = 5

# Get the number of days in the input month
_, last_day = calendar.monthrange(year, month)

# Print the last day of the month
print("The last day of the month is:", last_day)

In this example, we have an input year and month called year and month. We use the calendar.monthrange() function to get the number of days in the input month. The function returns a tuple, and we assign the second element of the tuple to the last_day variable. Finally, we print the last day of the month.

If you want to get the date object representing the last day of the month, you can use the datetime.date() constructor:

import calendar
import datetime

# The input year and month
year = 2023
month = 5

# Get the number of days in the input month
_, last_day = calendar.monthrange(year, month)

# Create a date object representing the last day of the month
last_day_date = datetime.date(year, month, last_day)

# Print the last day of the month as a date object
print("The last day of the month is:", last_day_date)

In this example, we use the datetime.date() constructor to create a date object representing the last day of the month, and we print the date object.

Python calendar.monthrange() for the last day of the month:

import calendar

year = 2023
month = 12

_, last_day = calendar.monthrange(year, month)

print(f"Last day of the month: {last_day}")

Get the last day of the month with the datetime module in Python:

from datetime import datetime, timedelta

year = 2023
month = 12

first_day_of_next_month = datetime(year, month + 1, 1)
last_day = (first_day_of_next_month - timedelta(days=1)).day

print(f"Last day of the month: {last_day}")

Calculating the last day of the month using pandas in Python:

import pandas as pd

year = 2023
month = 12

last_day = pd.Timestamp(f"{year}-{month + 1}-01") - pd.DateOffset(days=1)

print(f"Last day of the month: {last_day.day}")

Using calendar.monthcalendar() for the last day of the month in Python:

import calendar

year = 2023
month = 12

month_calendar = calendar.monthcalendar(year, month)
last_week = month_calendar[-1]
last_day = max(day for day in last_week if day != 0)

print(f"Last day of the month: {last_day}")

Get the last day of the month with calendar.monthlen() in Python:

import calendar

year = 2023
month = 12

last_day = calendar.monthlen(year, month)

print(f"Last day of the month: {last_day}")

Finding the end of the month with dateutil.relativedelta in Python:

from datetime import datetime
from dateutil.relativedelta import relativedelta

year = 2023
month = 12

last_day = (datetime(year, month, 1) + relativedelta(months=1, days=-1)).day

print(f"Last day of the month: {last_day}")

Python pandas for the last day of the month with date_range():

import pandas as pd

year = 2023
month = 12

last_day = pd.date_range(start=f"{year}-{month}-01", periods=2, freq='M')[1].day

print(f"Last day of the month: {last_day}")

Retrieve the last day of the month with timedelta in Python:

from datetime import datetime, timedelta

year = 2023
month = 12

first_day_of_next_month = datetime(year, month + 1, 1)
last_day = (first_day_of_next_month - timedelta(days=1)).day

print(f"Last day of the month: {last_day}")

Calculating the end of the month with calendar.isleap() in Python:

import calendar

year = 2023
month = 12

_, last_day = calendar.monthrange(year, month)
last_day += calendar.isleap(year) and month == 2

print(f"Last day of the month: {last_day}")

Get the last day of the month using calendar.day_name() in Python:

import calendar

year = 2023
month = 12

_, last_day = calendar.monthrange(year, month)
day_name = calendar.day_name[calendar.weekday(year, month, last_day)]

print(f"Last day of the month ({day_name}): {last_day}")

Finding the last day of the month with monthdelta in Python:

from datetime import datetime
from monthdelta import monthdelta

year = 2023
month = 12

last_day = (datetime(year, month, 1) + monthdelta(1) - timedelta(days=1)).day

print(f"Last day of the month: {last_day}")

Python numpy for the last day of the month with datetime64:

import numpy as np

year = 2023
month = 12

last_day = np.datetime64(f'{year}-{month + 1:02}-01') - np.timedelta64(1, 'D')

print(f"Last day of the month: {last_day}")

Using calendar.isleap() and calendar.month_abbr() for the last day in Python:

import calendar

year = 2023
month = 12

_, last_day = calendar.monthrange(year, month)
last_day += calendar.isleap(year) and month == 2

month_name = calendar.month_abbr[month]

print(f"Last day of {month_name}, {year}: {last_day}")

Python arrow library for the last day of the month:

import arrow

year = 2023
month = 12

last_day = arrow.get(f'{year}-{month + 1:02}-01').shift(days=-1).day

print(f"Last day of the month: {last_day}")

Retrieve the last day of the month using calendar.monthcalendar() in Python:

import calendar

year = 2023
month = 12

month_calendar = calendar.monthcalendar(year, month)
last_week = month_calendar[-1]
last_day = max(day for day in last_week if day != 0)

print(f"Last day of the month: {last_day}")

Finding the end of the month with calendar.monthrange() and timedelta in Python:

from datetime import datetime, timedelta
import calendar

year = 2023
month = 12

_, last_day = calendar.monthrange(year, month)
last_day = datetime(year, month, last_day) + timedelta(days=1, seconds=-1)

print(f"Last day of the month: {last_day}")

Get the last day of the month with calendar.monthcalendar() and max() in Python:

import calendar

year = 2023
month = 12

month_calendar = calendar.monthcalendar(year, month)
last_day = max(max(week) for week in month_calendar)

print(f"Last day of the month: {last_day}")

Calculating the last day of the month using the pendulum library in Python:

import pendulum

year = 2023
month = 12

last_day = pendulum.datetime(year, month, 1).end_of('month').day

print(f"Last day of the month: {last_day}")