To find the day-name of 30-November-2023, you can use the Zeller’s Congruence formula. This mathematical formula determines the day of the week for any date in the Gregorian calendar. The day of the week is significant as it helps in scheduling events, planning activities, and organizing work efficiently. It enables individuals and organizations to manage their time effectively.

Zeller’s Congruence formula is based on modular arithmetic, and it involves several simple calculations. First, assign numerical values to the month and year. Then, apply the formula which considers the day, month, and year to compute the day of the week. By following the steps of this formula, you can determine the day-name manually without the need for technological tools or calendars.

Understanding how to manually calculate the day of the week adds a practical skill to your repertoire. It allows you to find the day-name with precision and accuracy, even without access to digital devices. By mastering this technique, you can enhance your problem-solving abilities and mathematical proficiency. Moreover, knowing the day-name of a specific date can aid in historical research, event planning, or simply satisfying your curiosity about the past or future.