Common year starting on Friday

From Wikipedia, the free encyclopedia
Jump to: navigation, search

This is the calendar for any common year starting on Friday, January 1 (dominical letter C). Examples: Gregorian years 1982, 1993, 1999, 2010, 2021, 2027, and 2038[1] or Julian year 1910 (see bottom tables).

A common year is a year with 365 days, i.e., not a leap year.

01 02
03 04 05 06 07 08 09
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31  
01 02 03 04 05 06
07 08 09 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28  
 
01 02 03 04 05 06
07 08 09 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31  
 
01 02 03
04 05 06 07 08 09 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30
 
01
02 03 04 05 06 07 08
09 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31  
01 02 03 04 05
06 07 08 09 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30  
 
01 02 03
04 05 06 07 08 09 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
 
01 02 03 04 05 06 07
08 09 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31  
 
01 02 03 04
05 06 07 08 09 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30  
 
01 02
03 04 05 06 07 08 09
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31  
01 02 03 04 05 06
07 08 09 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30  
 
01 02 03 04
05 06 07 08 09 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31  
 
Millennium Century Gregorian Year[1]
2nd millennium: 19th century: 1802 1813 1819 1830 1841 1847 1858 1869 1875 1886 1897
2nd millennium: 20th century: 1909 1915 1926 1937 1943 1954 1965 1971 1982 1993 1999
3rd millennium: 21st century: 2010 2021 2027 2038 2049 2055 2066 2077 2083 2094 2100
3rd millennium: 22nd century: 2106 2117 2123 2134 2145 2151 2162 2173 2179 2190
Millennium Century Julian Year[2]
2nd Millennium: 19th century: 1809 1815 1826 1837 1843 1854 1865 1871 1882 1893 1899
2nd Millennium: 20th century: 1910 1921 1927 1938 1949 1955 1966 1977 1983 1994
3rd Millennium: 21st century: 2005 2011 2022 2033 2039 2050 2061 2067 2078 2089 2095
3rd Millennium: 22nd century: 2106 2117 2123 2134 2145 2151 2162 2173 2179 2190

This is the only year type where the nth "Doomsday" (this year Sunday) is not in ISO week n; it is in ISO week n-1.

References[edit]

  1. ^ a b "A common year beginning on Friday", jonstlouis.htmlplanet.com, 2011, webpage: HTMcal.
  2. ^ "Calendar in year 1809 (Russia)" (Julian calendar, starting Tuesday), webpage: Julian-1809 (Romania used Julian in 1919, when Russia adopted Gregorian).
  1. ^ Robert H. van Gent (2005). "Mathematics of the ISO calendar". Department of Mathematics at Utrecht University.