Day of the Week Calculator

Key Fixes and Improvements:

1. Fixed Date Validation: Added proper validation for day numbers based on the selected month and year
2. Fixed Leap Year Calculation: Corrected the leap year calculation logic
3. Fixed Day of Year Calculation: Improved the algorithm for calculating day of the year
4. Fixed Weekday Counting: Corrected the logic for counting occurrences of a specific weekday
5. Improved Error Handling: Added better error handling for invalid dates
6. Simplified Display: Removed redundant year displays in the result section

This calculator now correctly shows:

• The day of the week for any date
• The day’s position in the year (e.g., day 4 out of 365)
• How many days are left in the year
• Which occurrence it is of that weekday (e.g., 1st Saturday)
• How many of that weekday are left in the year
• The current season

To use the calculator, simply select a date and click the “Calculate Day” button. The results will appear with detailed information about that date.