The Bhutanese calendar


From this page are available calendars from the Bhutanese tradition. These are very similar to those in the Phugpa tradition, but with certain values used in the calculations being different. The most obvious difference with the Phugpa and all other calendars, is that the weekdays are one ahead of all others. So, if today is a Wednesday in the Phugpa, Tsurphu, and Gregorian calendars, in Bhutan it is a Thursday.

The main text for the definitions of the Bhutanese calendar is the "rtsis gzhung gdan dus thun mong gi nges pa gsar du bkod pa dang bcas pa'i lag len lhan thabs gsal ba'i sgron me", by "lha dbang blo gros". In that text, the epoch given is 1754, and so in the following, Bhutanese calendars are listed from 1755 onwards (up to 2049). Please scroll down and click on the year for which a calendar is required.

The epoch data used in these calendars, from the text by "lha dbang blo gros", are as follows (note that he uses a slightly different mixed-radix system from the Phugpa tradition, but his mean motions of the Sun and Moon are in fact identical):

Epoch: Monday 22nd April 1754. Julian day: 2361807

True month: m × 1;2 + 0;2 (1,65)
Mean weekday: M × 1;31,50,80 + 2;4,24,552 (707)
Anomaly: M × 2;1 + 3;30 (28,126)
Mean Sun: M × 2;10,58,14 + 0;24,10,50 (27)
General day: 59,207
Mars: 197
Jupiter: 1448
Saturn: 7710
Mercury: 447 – there are some doubts about the interpretation of this figure
Venus: 65
Rāhu: 118



1755 1756 1757 1758 1759
1760 1761 1762 1763 1764 1765 1766 1767 1768 1769
1770 1771 1772 1773 1774 1775 1776 1777 1778 1779
1780 1781 1782 1783 1784 1785 1786 1787 1788 1789
1790 1791 1792 1793 1794 1795 1796 1797 1798 1799

1800 1801 1802 1803 1804 1805 1806 1807 1808 1809
1810 1811 1812 1813 1814 1815 1816 1817 1818 1819
1820 1821 1822 1823 1824 1825 1826 1827 1828 1829
1830 1831 1832 1833 1834 1835 1836 1837 1838 1839
1840 1841 1842 1843 1844 1845 1846 1847 1848 1849
1850 1851 1852 1853 1854 1855 1856 1857 1858 1859
1860 1861 1862 1863 1864 1865 1866 1867 1868 1869
1870 1871 1872 1873 1874 1875 1876 1877 1878 1879
1880 1881 1882 1883 1884 1885 1886 1887 1888 1889
1890 1891 1892 1893 1894 1895 1896 1897 1898 1899

1900 1901 1902 1903 1904 1905 1906 1907 1908 1909
1910 1911 1912 1913 1914 1915 1916 1917 1918 1919
1920 1921 1922 1923 1924 1925 1926 1927 1928 1929
1930 1931 1932 1933 1934 1935 1936 1937 1938 1939
1940 1941 1942 1943 1944 1945 1946 1947 1948 1949
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959
1960 1961 1962 1963 1964 1965 1966 1967 1968 1969
1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
2030 2031 2032 2033 2034 2035 2036 2037 2038 2039
2040 2041 2042 2043 2044 2045 2046 2047 2048 2049
Last updated 5 February 2010.
Return to main calendar page.