2009 in Roman Numerals
In a date
| Date | Month.day.year | Day.month.year |
|---|---|---|
| January 1, 2009 | I.I.MMIX | I.I.MMIX |
| July 4, 2009 | VII.IV.MMIX | IV.VII.MMIX |
| December 31, 2009 | XII.XXXI.MMIX | XXXI.XII.MMIX |
The year stays MMIX in every date; only the day and the month change. Convert any date.
Common mistakes
Wrong: MM1X
Is MM1X the same as MMIX?
No. MM1X has the digit 1 where the letter I should be, so it isn't a Roman numeral. The year is MMIX.
Wrong: MMXI
Is MMXI also 2009?
No. Swapping the last two letters turns a subtraction into an addition: MMXI is 2011.
Wrong: MMVIIII
Why not MMVIIII?
A symbol repeats at most three times in a row. The standard form uses subtraction: MMIX.
Century
2009 is in the 21st century (XXI), which runs from 2001 to 2100. 21st Century in Roman Numerals.
- Century
- XXI2001–2100
- Leap year
- No365 days
- January 1
- Thursday
Numbered events in 2009
Super Bowl XLIII was played on February 1, 2009, at Raymond James Stadium in Tampa: Pittsburgh Steelers 27, Arizona Cardinals 23.
February 1, 2009Source: foxsports.com
Nearby years
Common questions
What year is MMIX?
2009: MM (2000) + IX (9).