Date memorization techniques
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This document outlines formulas and techniques for memorizing calendar dates: 1) It presents century, year, and month formulas that assign number codes to calculate the day of the week for any date. For example, the century formula divides the century by 4 and uses the remainder. 2) Key steps are to calculate the codes for century, year, month, and day, then add them and divide the total by 7 to get the day of the week. 3) Examples demonstrate applying the formulas, such as for the date November 30, 2320 the codes are: century 0, year 4, month 4, day 30, totaling 38 which divides by 7 to give Tuesday.
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- 1. He who is has imagination without learning has wings but not feet. Joseph Joubert Date Memorization Techniques Govinda Neupane
- 2. English Date Memory I. Century Formula II. Year Formula III. Month Formula IV. Day Formula Note: If there is Leap Year and month is January or February Month code should be decrease by one(-1).
- 3. How to calculate Month Code Year Code Century code
- 4. Key points The calendar date calculation steps: i. Take the number code for the century. ii. Take the number code for year. iii. Take the number code for the month iv. Take the number of the day Add them together (making sure to always divide by 7 and keep the remainder)
- 5. Date Calculation Last but not list translate your answer, into number which will be a 0-6 and 0 represent Saturday 1 represent Sunday and so on.
- 6. Century Formula C.F. = Century divide by 4. ex 20/4 remi = 0 = 6 or (-1) If reminder 0 = 6(-1) 1= 4 2= 2 3= 0 .
- 7. Year Formula If year = 70 Year Code. = Year /4 = (17) quotient + year / 7 (0) Reminder Again, quotient + reminder 7 = 17+0=7 = 3 (Reminder) so Day = Tuesday Note: Quotient + Reminder / 7 and count the reminder as a day
- 8. Months Formula Tricks 144.. 146 in in between square of 5 and 6 before it place 0 on it. January = 1 February = 4 March = 4 April = 0 May = 2 June = 5 July = 0 August = 3 September = 6 October = 1 November = 4 December = 6 Note: If there is Jan or Feb Month code value should be decrease by one in leap year.
- 9. Calendar Memorizing Example1: 2023 march 23 c/4 = 20/4 reminder 0 = 6 (-1) Year = 23 = 0 Month = March = 4 Day = 23 Example1: 2320 November 30 c/4 = 23/4 reminder 3 = 0 Year = 20 = 4 Month = Nov= 4 Day = 30 6+ 0 + 4 + 23 = 33/7= 5( Thursday) 0 + 4 + 4 + 30 = 38/7= 3( Tuesday)