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Length of Tropical Years 1900–2100

A tropical year is approximately 365.242189 days long. However, the exact length can vary up to 30 minutes.

Illustration image
Illustration image

The exact length of a Tropical Year (complete orbit) can vary up to 30 minutes.

A tropical year is also known as a solar year, an astronomical year, or an equinoctial year. It is defined as the time it takes to complete a full seasonal cycle. Because the Earth's speed is not constant, the length of tropical years can vary by up to 30 minutes.

The length of a tropical year is usually measured from one equinox or solstice to the next. The table below shows the exact time spans between the March equinoxes in the years 1900 to 2100.

Tropical Years 1900–2100

 DaysHoursMinutesSeconds
March 1900 – March 190136554440
March 1901 – March 190236555247
March 1902 – March 190336555826
March 1903 – March 190436554335
March 1904 – March 19053655598
March 1905 – March 190636555520
March 1906 – March 190736554010
March 1907 – March 190836555424
March 1908 – March 190936554531
March 1909 – March 19103655504
March 1910 – March 191136555122
March 1911 – March 19123655355
March 1912 – March 191336554841
March 1913 – March 191436555242
March 1914 – March 191536554044
March 1915 – March 191636555525
March 1916 – March 191736555033
March 1917 – March 191836554816
March 1918 – March 191936555332
March 1919 – March 192036554014
March 1920 – March 192136555134
March 1921 – March 192236555748
March 1922 – March 19233655401
March 1923 – March 192436555132
March 1924 – March 19253655520
March 1925 – March 192636554854
March 1926 – March 19273655582
March 1927 – March 192836554457
March 1928 – March 192936555049
March 1929 – March 193036555449
March 1930 – March 193136553639
March 1931 – March 193236554717
March 1932 – March 193336554923
March 1933 – March 193436554454
March 1934 – March 193536554940
March 1935 – March 193636554017
March 1936 – March 19373655477
March 1937 – March 19383655585
March 1938 – March 193936554526
March 1939 – March 19403655558
March 1940 – March 194136555652
March 1941 – March 19423655502
March 1942 – March 19433655529
March 1943 – March 194436554554
March 1944 – March 194536554835
March 1945 – March 194636555537
March 1946 – March 194736553953
March 1947 – March 194836554420
March 1948 – March 19493655514
March 1949 – March 195036554710
March 1950 – March 195136555033
March 1951 – March 195236554756
March 1952 – March 195336554656
March 1953 – March 195436555247
March 1954 – March 195536554153
March 1955 – March 19563655454
March 1956 – March 195736555614
March 1957 – March 195836554919
March 1958 – March 195936554838
March 1959 – March 196036554820
March 1960 – March 196136554916
March 1961 – March 196236555737
March 1962 – March 19633655505
March 1963 – March 196436555011
March 1964 – March 19653655551
March 1965 – March 196636554758
March 1966 – March 19673655446
March 1967 – March 19683655450
March 1968 – March 196936554613
March 1969 – March 197036554814
March 1970 – March 197136554150
March 1971 – March 197236554327
March 1972 – March 197336555053
March 1973 – March 197436555418
March 1974 – March 197536554955
March 1975 – March 19763655530
March 1976 – March 197736555243
March 1977 – March 197836555115
March 1978 – March 197936554835
March 1979 – March 198036554734
March 1980 – March 198136555320
March 1981 – March 198236555251
March 1982 – March 198336554258
March 1983 – March 198436554540
March 1984 – March 198536554916
March 1985 – March 198636554910
March 1986 – March 19873655495
March 1987 – March 198836554650
March 1988 – March 198936554937
March 1989 – March 199036555056
March 1990 – March 199136554248
March 1991 – March 199236554554
March 1992 – March 199336555247
March 1993 – March 199436554716
March 1994 – March 199536554634
March 1995 – March 199636554841
March 1996 – March 199736555130
March 1997 – March 199836555959
March 1998 – March 19993655516
March 1999 – March 200036554936
March 2000 – March 200136555522
March 2001 – March 200236554530
March 2002 – March 200336554341
March 2003 – March 200436554844
March 2004 – March 200536554459
March 2005 – March 200636555155
March 2006 – March 20073655423
March 2007 – March 200836554045
March 2008 – March 200936555519
March 2009 – March 201036554841
March 2010 – March 201136554823
March 2011 – March 201236555356
March 2012 – March 201336554722
March 2013 – March 201436555514
March 2014 – March 20153655482
March 2015 – March 201636554456
March 2016 – March 201736555836
March 2017 – March 201836554641
March 2018 – March 201936554312
March 2019 – March 20203655514
March 2020 – March 202136554755
March 2021 – March 202236555554
March 2022 – March 202336555055
March 2023 – March 20243655428
March 2024 – March 202536555453
March 2025 – March 202636554439
March 2026 – March 202736553839
March 2027 – March 202836555227
March 2028 – March 202936554457
March 2029 – March 203036554956
March 2030 – March 20313655496
March 2031 – March 203236554042
March 2032 – March 20333656057
March 2033 – March 203436555443
March 2034 – March 203536554514
March 2035 – March 20363656016
March 2036 – March 203736554717
March 2037 – March 203836555031
March 2038 – March 203936555114
March 2039 – March 204036553942
March 2040 – March 20413655557
March 2041 – March 204236554627
March 2042 – March 204336553443
March 2043 – March 204436555235
March 2044 – March 204536554715
March 2045 – March 20463655505
March 2046 – March 204736555453
March 2047 – March 204836554114
March 2048 – March 204936555439
March 2049 – March 205036555111
March 2050 – March 205136553925
March 2051 – March 20523655576
March 2052 – March 205336555117
March 2053 – March 20543655475
March 2054 – March 205536555420
March 2055 – March 205636554216
March 2056 – March 20573655571
March 2057 – March 205836555659
March 2058 – March 205936553925
March 2059 – March 206036555418
March 2060 – March 206136554744
March 2061 – March 206236554122
March 2062 – March 206336555131
March 2063 – March 206436553937
March 2064 – March 206536554927
March 2065 – March 206636555145
March 2066 – March 206736553354
March 2067 – March 206836555516
March 2068 – March 206936555617
March 2069 – March 207036554938
March 2070 – March 2071365601
March 2071 – March 207236554618
March 2072 – March 207336555218
March 2073 – March 207436555539
March 2074 – March 207536553736
March 2075 – March 207636555229
March 2076 – March 207736555211
March 2077 – March 207836553954
March 2078 – March 207936554951
March 2079 – March 208036554322
March 2080 – March 208136555017
March 2081 – March 208236555612
March 2082 – March 208336554010
March 2083 – March 208436554853
March 2084 – March 208536555413
March 2085 – March 208636554145
March 2086 – March 20873655530
March 2087 – March 208836554854
March 2088 – March 208936554924
March 2089 – March 209036555536
March 2090 – March 209136553956
March 2091 – March 209236555144
March 2092 – March 2093365616
March 2093 – March 209436554654
March 2094 – March 209536555338
March 2095 – March 209636554748
March 2096 – March 209736554535
March 2097 – March 209836555159
March 2098 – March 209936553716
March 2099 – March 21003655468

Topics: Astronomy, Timekeeping