Python Calendar weekday Function

The weekday function in Python’s calendar module returns the day of the week for a given date. This function is useful for determining the day of the week for any given date.

Table of Contents

1. Introduction
2. weekday Function Syntax
3. Examples
   • Basic Usage
   • Finding the Day of the Week for a Specific Date
4. Real-World Use Case
5. Conclusion

Introduction

The weekday function in Python’s calendar module determines the day of the week for a specified date. The function returns an integer corresponding to the day of the week, where Monday is 0 and Sunday is 6.

weekday Function Syntax

Here is how you use the weekday function:

import calendar

day_of_week = calendar.weekday(year, month, day)

Parameters:

• year: The year as an integer.
• month: The month as an integer (1-12).
• day: The day as an integer (1-31).

Returns:

• An integer representing the day of the week, where Monday is 0 and Sunday is 6.

Examples

Basic Usage

Here is an example of how to use the weekday function to find the day of the week for a given date.

Example

import calendar

# Finding the day of the week for July 20, 2024
year = 2024
month = 7
day = 20
day_of_week = calendar.weekday(year, month, day)
print(f"The day of the week for {year}-{month}-{day} is {day_of_week} (0=Monday, 6=Sunday)")

Output:

The day of the week for 2024-7-20 is 5 (0=Monday, 6=Sunday)

Finding the Day of the Week for a Specific Date

This example demonstrates how to use the weekday function to check the day of the week for another specific date.

Example

import calendar

# Finding the day of the week for January 1, 2023
year = 2023
month = 1
day = 1
day_of_week = calendar.weekday(year, month, day)
print(f"The day of the week for {year}-{month}-{day} is {day_of_week} (0=Monday, 6=Sunday)")

Output:

The day of the week for 2023-1-1 is 6 (0=Monday, 6=Sunday)

Real-World Use Case

Scheduling Events

In real-world applications, the weekday function can be used to determine the day of the week for scheduling events or setting reminders.

Example

import calendar

def get_day_of_week(year, month, day):
    days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
    day_of_week = calendar.weekday(year, month, day)
    return days[day_of_week]

# Example usage
event_year = 2024
event_month = 12
event_day = 25
day_name = get_day_of_week(event_year, event_month, event_day)
print(f"The day of the week for {event_year}-{event_month}-{event_day} is {day_name}")

Output:

The day of the week for 2024-12-25 is Wednesday

Conclusion

The weekday function in Python’s calendar module returns the day of the week for a given date, represented as an integer where Monday is 0 and Sunday is 6. This function is useful for determining the day of the week for any specific date, which can be helpful for scheduling events and setting reminders.