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How to Identify and Classify Dates
Contributed by: Woolley
  • 1. What is the first step in identifying a date?
A) Look for numerical patterns or separators.
B) Ignore context entirely.
C) Consult an expert immediately.
D) Assume the date is invalid.
  • 2. Which of these is a common separator used in dates?
A) %
B) /
C) #
D) $
  • 3. What does 'YYYY' typically represent in date formats?
A) Seconds.
B) Month number.
C) Four-digit year.
D) Day of the week.
  • 4. What does 'MM' typically represent in date formats?
A) Milliseconds.
B) Two-digit month.
C) Year of the century.
D) Day of the year.
  • 5. What does 'DD' typically represent in date formats?
A) Minute of the hour.
B) Day of the month as a word.
C) Two-digit day.
D) Hour of the day.
  • 6. Which of the following is the ISO 8601 date format?
A) YYYY/MM/DD
B) DD-MM-YYYY
C) MM-DD-YYYY
D) YYYY-MM-DD
  • 7. What does the ordinal indicator 'th' signify in a date like '4th'?
A) The temperature on that day.
B) The hour of the day.
C) The number of days left in the month.
D) The rank of the day within the month.
  • 8. What is the Gregorian calendar primarily based on?
A) Planetary alignments.
B) Random events.
C) Solar year.
D) Lunar cycle.
  • 9. What is the Julian calendar primarily based on?
A) Random events.
B) Lunar cycle.
C) Solar year (with less accurate leap year rules).
D) Planetary alignments.
  • 10. What is a 'day of the year' format?
A) A number from 1-366 representing the day.
B) The day of the week.
C) Always the first day of a specific month.
D) The number of days left in the year.
  • 11. What is epoch time?
A) Seconds since January 1, 1970 UTC.
B) Days since the formation of Earth.
C) Milliseconds since the Big Bang.
D) Hours since the start of the universe.
  • 12. What is a leap year?
A) A year with 365 days.
B) A year with 366 days.
C) A year with 364 days.
D) A year with 367 days.
  • 13. Why are leap years necessary?
A) To make February longer.
B) To account for the difference between the solar year and the calendar year.
C) To confuse historians.
D) Because of a decree by Julius Caesar.
  • 14. In 'March 15, 44 BC', what calendar is most likely being used?
A) Mayan Calendar
B) Julian Calendar
C) Gregorian Calendar
D) Islamic Calendar
  • 15. How can you differentiate between US (MM/DD/YYYY) and European (DD/MM/YYYY) date formats?
A) Presence of ordinal indicators.
B) Font style.
C) Color of the text.
D) Context and day/month values.
  • 16. What is a 'quarter' in date terms?
A) A one-month period.
B) A four-month period.
C) A six-month period.
D) A three-month period.
  • 17. Which date format is commonly used in programming?
A) YY/MM/DD
B) DD-MM-YY
C) ISO 8601 (YYYY-MM-DD)
D) MM/DD/YY
  • 18. What does AM/PM signify?
A) Absolute Minute/Past Minute.
B) Atypical Morning/Perfectly Magnificent.
C) Ante Meridiem/Post Meridiem, before/after noon.
D) Always/Perhaps Midnight.
  • 19. Which date is written correctly?
A) October 27nd, 2023
B) October 27th, 2023
C) October 27, 2023
D) 27 October, 2023rd
  • 20. What is the Unix timestamp?
A) Number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT).
B) The number of CPU cycles since the invention of the computer.
C) A secret code known only to Unix programmers.
D) Number of days since the birth of Unix.
  • 21. How do you handle ambiguous dates like '01/02/03'?
A) Reroll the date.
B) Consider the context and expected format.
C) Ignore the date.
D) Assume it's always January 2nd, 2003.
  • 22. What does 'CE' stand for?
A) Christian Era
B) Current Epoch
C) Common Era
D) Calculated Era
  • 23. What does 'BCE' stand for?
A) Before Current Epoch
B) Before Common Era
C) Before Christian Era
D) Best Case Estimate
  • 24. Which of the following is NOT a valid date?
A) January 31, 2024
B) February 30, 2024
C) April 30, 2024
D) December 31, 2024
  • 25. What is the purpose of a date parser?
A) To print dates on paper.
B) To calculate the age of a document.
C) To convert date strings into a structured date object.
D) To automatically create new dates.
  • 26. Which of the following affects date calculations?
A) Font size.
B) Network speed.
C) Time zones.
D) Color of the paper.
  • 27. What is a 'week number'?
A) The week's position within the year.
B) The day of the week.
C) A random number assigned to each week.
D) The number of days in the week.
  • 28. Which calendar system is primarily lunar?
A) Mayan calendar.
B) Julian calendar.
C) Islamic calendar.
D) Gregorian calendar.
  • 29. How many days are in a common year?
A) 366
B) 367
C) 364
D) 365
  • 30. What should you do if a date format is unknown?
A) Guess randomly.
B) Always assume the current date.
C) Research common formats and regional conventions.
D) Delete the data.
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