3 // Copyright (c) Microsoft Corporation. All rights reserved.
6 namespace System.Globalization {
8 using System.Diagnostics.Contracts;
11 ////////////////////////////////////////////////////////////////////////////
13 // Notes about UmAlQuraCalendar
15 ////////////////////////////////////////////////////////////////////////////
17 ** Calendar support range:
18 ** Calendar Minimum Maximum
19 ** ========== ========== ==========
20 ** Gregorian 1900/04/30 2077/11/17
21 ** UmAlQura 1318/01/01 1500/12/30
25 public class UmAlQuraCalendar : Calendar {
27 internal const int MinCalendarYear = 1318;
28 internal const int MaxCalendarYear = 1500;
30 internal struct DateMapping
32 internal DateMapping(int MonthsLengthFlags, int GYear, int GMonth, int GDay)
34 HijriMonthsLengthFlags = MonthsLengthFlags;
35 GregorianDate = new DateTime(GYear, GMonth, GDay);
37 internal int HijriMonthsLengthFlags;
38 internal DateTime GregorianDate;
41 static readonly DateMapping [] HijriYearInfo = InitDateMapping();
43 static DateMapping[] InitDateMapping()
45 short[] rawData = new short[] {
46 //These data is taken from Tables/Excel/UmAlQura.xls please make sure that the two places are in [....]
47 /* DaysPerM GY GM GD D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12
48 1318*/0x02EA, 1900, 4, 30,/* 0 1 0 1 0 1 1 1 0 1 0 0 4/30/1900
49 1319*/0x06E9, 1901, 4, 19,/* 1 0 0 1 0 1 1 1 0 1 1 0 4/19/1901
50 1320*/0x0ED2, 1902, 4, 9,/* 0 1 0 0 1 0 1 1 0 1 1 1 4/9/1902
51 1321*/0x0EA4, 1903, 3, 30,/* 0 0 1 0 0 1 0 1 0 1 1 1 3/30/1903
52 1322*/0x0D4A, 1904, 3, 18,/* 0 1 0 1 0 0 1 0 1 0 1 1 3/18/1904
53 1323*/0x0A96, 1905, 3, 7,/* 0 1 1 0 1 0 0 1 0 1 0 1 3/7/1905
54 1324*/0x0536, 1906, 2, 24,/* 0 1 1 0 1 1 0 0 1 0 1 0 2/24/1906
55 1325*/0x0AB5, 1907, 2, 13,/* 1 0 1 0 1 1 0 1 0 1 0 1 2/13/1907
56 1326*/0x0DAA, 1908, 2, 3,/* 0 1 0 1 0 1 0 1 1 0 1 1 2/3/1908
57 1327*/0x0BA4, 1909, 1, 23,/* 0 0 1 0 0 1 0 1 1 1 0 1 1/23/1909
58 1328*/0x0B49, 1910, 1, 12,/* 1 0 0 1 0 0 1 0 1 1 0 1 1/12/1910
59 1329*/0x0A93, 1911, 1, 1,/* 1 1 0 0 1 0 0 1 0 1 0 1 1/1/1911
60 1330*/0x052B, 1911, 12, 21,/* 1 1 0 1 0 1 0 0 1 0 1 0 12/21/1911
61 1331*/0x0A57, 1912, 12, 9,/* 1 1 1 0 1 0 1 0 0 1 0 1 12/9/1912
62 1332*/0x04B6, 1913, 11, 29,/* 0 1 1 0 1 1 0 1 0 0 1 0 11/29/1913
63 1333*/0x0AB5, 1914, 11, 18,/* 1 0 1 0 1 1 0 1 0 1 0 1 11/18/1914
64 1334*/0x05AA, 1915, 11, 8,/* 0 1 0 1 0 1 0 1 1 0 1 0 11/8/1915
65 1335*/0x0D55, 1916, 10, 27,/* 1 0 1 0 1 0 1 0 1 0 1 1 10/27/1916
66 1336*/0x0D2A, 1917, 10, 17,/* 0 1 0 1 0 1 0 0 1 0 1 1 10/17/1917
67 1337*/0x0A56, 1918, 10, 6,/* 0 1 1 0 1 0 1 0 0 1 0 1 10/6/1918
68 1338*/0x04AE, 1919, 9, 25,/* 0 1 1 1 0 1 0 1 0 0 1 0 9/25/1919
69 1339*/0x095D, 1920, 9, 13,/* 1 0 1 1 1 0 1 0 1 0 0 1 9/13/1920
70 1340*/0x02EC, 1921, 9, 3,/* 0 0 1 1 0 1 1 1 0 1 0 0 9/3/1921
71 1341*/0x06D5, 1922, 8, 23,/* 1 0 1 0 1 0 1 1 0 1 1 0 8/23/1922
72 1342*/0x06AA, 1923, 8, 13,/* 0 1 0 1 0 1 0 1 0 1 1 0 8/13/1923
73 1343*/0x0555, 1924, 8, 1,/* 1 0 1 0 1 0 1 0 1 0 1 0 8/1/1924
74 1344*/0x04AB, 1925, 7, 21,/* 1 1 0 1 0 1 0 1 0 0 1 0 7/21/1925
75 1345*/0x095B, 1926, 7, 10,/* 1 1 0 1 1 0 1 0 1 0 0 1 7/10/1926
76 1346*/0x02BA, 1927, 6, 30,/* 0 1 0 1 1 1 0 1 0 1 0 0 6/30/1927
77 1347*/0x0575, 1928, 6, 18,/* 1 0 1 0 1 1 1 0 1 0 1 0 6/18/1928
78 1348*/0x0BB2, 1929, 6, 8,/* 0 1 0 0 1 1 0 1 1 1 0 1 6/8/1929
79 1349*/0x0764, 1930, 5, 29,/* 0 0 1 0 0 1 1 0 1 1 1 0 5/29/1930
80 1350*/0x0749, 1931, 5, 18,/* 1 0 0 1 0 0 1 0 1 1 1 0 5/18/1931
81 1351*/0x0655, 1932, 5, 6,/* 1 0 1 0 1 0 1 0 0 1 1 0 5/6/1932
82 1352*/0x02AB, 1933, 4, 25,/* 1 1 0 1 0 1 0 1 0 1 0 0 4/25/1933
83 1353*/0x055B, 1934, 4, 14,/* 1 1 0 1 1 0 1 0 1 0 1 0 4/14/1934
84 1354*/0x0ADA, 1935, 4, 4,/* 0 1 0 1 1 0 1 1 0 1 0 1 4/4/1935
85 1355*/0x06D4, 1936, 3, 24,/* 0 0 1 0 1 0 1 1 0 1 1 0 3/24/1936
86 1356*/0x0EC9, 1937, 3, 13,/* 1 0 0 1 0 0 1 1 0 1 1 1 3/13/1937
87 1357*/0x0D92, 1938, 3, 3,/* 0 1 0 0 1 0 0 1 1 0 1 1 3/3/1938
88 1358*/0x0D25, 1939, 2, 20,/* 1 0 1 0 0 1 0 0 1 0 1 1 2/20/1939
89 1359*/0x0A4D, 1940, 2, 9,/* 1 0 1 1 0 0 1 0 0 1 0 1 2/9/1940
90 1360*/0x02AD, 1941, 1, 28,/* 1 0 1 1 0 1 0 1 0 1 0 0 1/28/1941
91 1361*/0x056D, 1942, 1, 17,/* 1 0 1 1 0 1 1 0 1 0 1 0 1/17/1942
92 1362*/0x0B6A, 1943, 1, 7,/* 0 1 0 1 0 1 1 0 1 1 0 1 1/7/1943
93 1363*/0x0B52, 1943, 12, 28,/* 0 1 0 0 1 0 1 0 1 1 0 1 12/28/1943
94 1364*/0x0AA5, 1944, 12, 16,/* 1 0 1 0 0 1 0 1 0 1 0 1 12/16/1944
95 1365*/0x0A4B, 1945, 12, 5,/* 1 1 0 1 0 0 1 0 0 1 0 1 12/5/1945
96 1366*/0x0497, 1946, 11, 24,/* 1 1 1 0 1 0 0 1 0 0 1 0 11/24/1946
97 1367*/0x0937, 1947, 11, 13,/* 1 1 1 0 1 1 0 0 1 0 0 1 11/13/1947
98 1368*/0x02B6, 1948, 11, 2,/* 0 1 1 0 1 1 0 1 0 1 0 0 11/2/1948
99 1369*/0x0575, 1949, 10, 22,/* 1 0 1 0 1 1 1 0 1 0 1 0 10/22/1949
100 1370*/0x0D6A, 1950, 10, 12,/* 0 1 0 1 0 1 1 0 1 0 1 1 10/12/1950
101 1371*/0x0D52, 1951, 10, 2,/* 0 1 0 0 1 0 1 0 1 0 1 1 10/2/1951
102 1372*/0x0A96, 1952, 9, 20,/* 0 1 1 0 1 0 0 1 0 1 0 1 9/20/1952
103 1373*/0x092D, 1953, 9, 9,/* 1 0 1 1 0 1 0 0 1 0 0 1 9/9/1953
104 1374*/0x025D, 1954, 8, 29,/* 1 0 1 1 1 0 1 0 0 1 0 0 8/29/1954
105 1375*/0x04DD, 1955, 8, 18,/* 1 0 1 1 1 0 1 1 0 0 1 0 8/18/1955
106 1376*/0x0ADA, 1956, 8, 7,/* 0 1 0 1 1 0 1 1 0 1 0 1 8/7/1956
107 1377*/0x05D4, 1957, 7, 28,/* 0 0 1 0 1 0 1 1 1 0 1 0 7/28/1957
108 1378*/0x0DA9, 1958, 7, 17,/* 1 0 0 1 0 1 0 1 1 0 1 1 7/17/1958
109 1379*/0x0D52, 1959, 7, 7,/* 0 1 0 0 1 0 1 0 1 0 1 1 7/7/1959
110 1380*/0x0AAA, 1960, 6, 25,/* 0 1 0 1 0 1 0 1 0 1 0 1 6/25/1960
111 1381*/0x04D6, 1961, 6, 14,/* 0 1 1 0 1 0 1 1 0 0 1 0 6/14/1961
112 1382*/0x09B6, 1962, 6, 3,/* 0 1 1 0 1 1 0 1 1 0 0 1 6/3/1962
113 1383*/0x0374, 1963, 5, 24,/* 0 0 1 0 1 1 1 0 1 1 0 0 5/24/1963
114 1384*/0x0769, 1964, 5, 12,/* 1 0 0 1 0 1 1 0 1 1 1 0 5/12/1964
115 1385*/0x0752, 1965, 5, 2,/* 0 1 0 0 1 0 1 0 1 1 1 0 5/2/1965
116 1386*/0x06A5, 1966, 4, 21,/* 1 0 1 0 0 1 0 1 0 1 1 0 4/21/1966
117 1387*/0x054B, 1967, 4, 10,/* 1 1 0 1 0 0 1 0 1 0 1 0 4/10/1967
118 1388*/0x0AAB, 1968, 3, 29,/* 1 1 0 1 0 1 0 1 0 1 0 1 3/29/1968
119 1389*/0x055A, 1969, 3, 19,/* 0 1 0 1 1 0 1 0 1 0 1 0 3/19/1969
120 1390*/0x0AD5, 1970, 3, 8,/* 1 0 1 0 1 0 1 1 0 1 0 1 3/8/1970
121 1391*/0x0DD2, 1971, 2, 26,/* 0 1 0 0 1 0 1 1 1 0 1 1 2/26/1971
122 1392*/0x0DA4, 1972, 2, 16,/* 0 0 1 0 0 1 0 1 1 0 1 1 2/16/1972
123 1393*/0x0D49, 1973, 2, 4,/* 1 0 0 1 0 0 1 0 1 0 1 1 2/4/1973
124 1394*/0x0A95, 1974, 1, 24,/* 1 0 1 0 1 0 0 1 0 1 0 1 1/24/1974
125 1395*/0x052D, 1975, 1, 13,/* 1 0 1 1 0 1 0 0 1 0 1 0 1/13/1975
126 1396*/0x0A5D, 1976, 1, 2,/* 1 0 1 1 1 0 1 0 0 1 0 1 1/2/1976
127 1397*/0x055A, 1976, 12, 22,/* 0 1 0 1 1 0 1 0 1 0 1 0 12/22/1976
128 1398*/0x0AD5, 1977, 12, 11,/* 1 0 1 0 1 0 1 1 0 1 0 1 12/11/1977
129 1399*/0x06AA, 1978, 12, 1,/* 0 1 0 1 0 1 0 1 0 1 1 0 12/1/1978
130 1400*/0x0695, 1979, 11, 20,/* 1 0 1 0 1 0 0 1 0 1 1 0 11/20/1979
131 1401*/0x052B, 1980, 11, 8,/* 1 1 0 1 0 1 0 0 1 0 1 0 11/8/1980
132 1402*/0x0A57, 1981, 10, 28,/* 1 1 1 0 1 0 1 0 0 1 0 1 10/28/1981
133 1403*/0x04AE, 1982, 10, 18,/* 0 1 1 1 0 1 0 1 0 0 1 0 10/18/1982
134 1404*/0x0976, 1983, 10, 7,/* 0 1 1 0 1 1 1 0 1 0 0 1 10/7/1983
135 1405*/0x056C, 1984, 9, 26,/* 0 0 1 1 0 1 1 0 1 0 1 0 9/26/1984
136 1406*/0x0B55, 1985, 9, 15,/* 1 0 1 0 1 0 1 0 1 1 0 1 9/15/1985
137 1407*/0x0AAA, 1986, 9, 5,/* 0 1 0 1 0 1 0 1 0 1 0 1 9/5/1986
138 1408*/0x0A55, 1987, 8, 25,/* 1 0 1 0 1 0 1 0 0 1 0 1 8/25/1987
139 1409*/0x04AD, 1988, 8, 13,/* 1 0 1 1 0 1 0 1 0 0 1 0 8/13/1988
140 1410*/0x095D, 1989, 8, 2,/* 1 0 1 1 1 0 1 0 1 0 0 1 8/2/1989
141 1411*/0x02DA, 1990, 7, 23,/* 0 1 0 1 1 0 1 1 0 1 0 0 7/23/1990
142 1412*/0x05D9, 1991, 7, 12,/* 1 0 0 1 1 0 1 1 1 0 1 0 7/12/1991
143 1413*/0x0DB2, 1992, 7, 1,/* 0 1 0 0 1 1 0 1 1 0 1 1 7/1/1992
144 1414*/0x0BA4, 1993, 6, 21,/* 0 0 1 0 0 1 0 1 1 1 0 1 6/21/1993
145 1415*/0x0B4A, 1994, 6, 10,/* 0 1 0 1 0 0 1 0 1 1 0 1 6/10/1994
146 1416*/0x0A55, 1995, 5, 30,/* 1 0 1 0 1 0 1 0 0 1 0 1 5/30/1995
147 1417*/0x02B5, 1996, 5, 18,/* 1 0 1 0 1 1 0 1 0 1 0 0 5/18/1996
148 1418*/0x0575, 1997, 5, 7,/* 1 0 1 0 1 1 1 0 1 0 1 0 5/7/1997
149 1419*/0x0B6A, 1998, 4, 27,/* 0 1 0 1 0 1 1 0 1 1 0 1 4/27/1998
150 1420*/0x0BD2, 1999, 4, 17,/* 0 1 0 0 1 0 1 1 1 1 0 1 4/17/1999
151 1421*/0x0BC4, 2000, 4, 6,/* 0 0 1 0 0 0 1 1 1 1 0 1 4/6/2000
152 1422*/0x0B89, 2001, 3, 26,/* 1 0 0 1 0 0 0 1 1 1 0 1 3/26/2001
153 1423*/0x0A95, 2002, 3, 15,/* 1 0 1 0 1 0 0 1 0 1 0 1 3/15/2002
154 1424*/0x052D, 2003, 3, 4,/* 1 0 1 1 0 1 0 0 1 0 1 0 3/4/2003
155 1425*/0x05AD, 2004, 2, 21,/* 1 0 1 1 0 1 0 1 1 0 1 0 2/21/2004
156 1426*/0x0B6A, 2005, 2, 10,/* 0 1 0 1 0 1 1 0 1 1 0 1 2/10/2005
157 1427*/0x06D4, 2006, 1, 31,/* 0 0 1 0 1 0 1 1 0 1 1 0 1/31/2006
158 1428*/0x0DC9, 2007, 1, 20,/* 1 0 0 1 0 0 1 1 1 0 1 1 1/20/2007
159 1429*/0x0D92, 2008, 1, 10,/* 0 1 0 0 1 0 0 1 1 0 1 1 1/10/2008
160 1430*/0x0AA6, 2008, 12, 29,/* 0 1 1 0 0 1 0 1 0 1 0 1 12/29/2008
161 1431*/0x0956, 2009, 12, 18,/* 0 1 1 0 1 0 1 0 1 0 0 1 12/18/2009
162 1432*/0x02AE, 2010, 12, 7,/* 0 1 1 1 0 1 0 1 0 1 0 0 12/7/2010
163 1433*/0x056D, 2011, 11, 26,/* 1 0 1 1 0 1 1 0 1 0 1 0 11/26/2011
164 1434*/0x036A, 2012, 11, 15,/* 0 1 0 1 0 1 1 0 1 1 0 0 11/15/2012
165 1435*/0x0B55, 2013, 11, 4,/* 1 0 1 0 1 0 1 0 1 1 0 1 11/4/2013
166 1436*/0x0AAA, 2014, 10, 25,/* 0 1 0 1 0 1 0 1 0 1 0 1 10/25/2014
167 1437*/0x094D, 2015, 10, 14,/* 1 0 1 1 0 0 1 0 1 0 0 1 10/14/2015
168 1438*/0x049D, 2016, 10, 2,/* 1 0 1 1 1 0 0 1 0 0 1 0 10/2/2016
169 1439*/0x095D, 2017, 9, 21,/* 1 0 1 1 1 0 1 0 1 0 0 1 9/21/2017
170 1440*/0x02BA, 2018, 9, 11,/* 0 1 0 1 1 1 0 1 0 1 0 0 9/11/2018
171 1441*/0x05B5, 2019, 8, 31,/* 1 0 1 0 1 1 0 1 1 0 1 0 8/31/2019
172 1442*/0x05AA, 2020, 8, 20,/* 0 1 0 1 0 1 0 1 1 0 1 0 8/20/2020
173 1443*/0x0D55, 2021, 8, 9,/* 1 0 1 0 1 0 1 0 1 0 1 1 8/9/2021
174 1444*/0x0A9A, 2022, 7, 30,/* 0 1 0 1 1 0 0 1 0 1 0 1 7/30/2022
175 1445*/0x092E, 2023, 7, 19,/* 0 1 1 1 0 1 0 0 1 0 0 1 7/19/2023
176 1446*/0x026E, 2024, 7, 7,/* 0 1 1 1 0 1 1 0 0 1 0 0 7/7/2024
177 1447*/0x055D, 2025, 6, 26,/* 1 0 1 1 1 0 1 0 1 0 1 0 6/26/2025
178 1448*/0x0ADA, 2026, 6, 16,/* 0 1 0 1 1 0 1 1 0 1 0 1 6/16/2026
179 1449*/0x06D4, 2027, 6, 6,/* 0 0 1 0 1 0 1 1 0 1 1 0 6/6/2027
180 1450*/0x06A5, 2028, 5, 25,/* 1 0 1 0 0 1 0 1 0 1 1 0 5/25/2028
181 1451*/0x054B, 2029, 5, 14,/* 1 1 0 1 0 0 1 0 1 0 1 0 5/14/2029
182 1452*/0x0A97, 2030, 5, 3,/* 1 1 1 0 1 0 0 1 0 1 0 1 5/3/2030
183 1453*/0x054E, 2031, 4, 23,/* 0 1 1 1 0 0 1 0 1 0 1 0 4/23/2031
184 1454*/0x0AAE, 2032, 4, 11,/* 0 1 1 1 0 1 0 1 0 1 0 1 4/11/2032
185 1455*/0x05AC, 2033, 4, 1,/* 0 0 1 1 0 1 0 1 1 0 1 0 4/1/2033
186 1456*/0x0BA9, 2034, 3, 21,/* 1 0 0 1 0 1 0 1 1 1 0 1 3/21/2034
187 1457*/0x0D92, 2035, 3, 11,/* 0 1 0 0 1 0 0 1 1 0 1 1 3/11/2035
188 1458*/0x0B25, 2036, 2, 28,/* 1 0 1 0 0 1 0 0 1 1 0 1 2/28/2036
189 1459*/0x064B, 2037, 2, 16,/* 1 1 0 1 0 0 1 0 0 1 1 0 2/16/2037
190 1460*/0x0CAB, 2038, 2, 5,/* 1 1 0 1 0 1 0 1 0 0 1 1 2/5/2038
191 1461*/0x055A, 2039, 1, 26,/* 0 1 0 1 1 0 1 0 1 0 1 0 1/26/2039
192 1462*/0x0B55, 2040, 1, 15,/* 1 0 1 0 1 0 1 0 1 1 0 1 1/15/2040
193 1463*/0x06D2, 2041, 1, 4,/* 0 1 0 0 1 0 1 1 0 1 1 0 1/4/2041
194 1464*/0x0EA5, 2041, 12, 24,/* 1 0 1 0 0 1 0 1 0 1 1 1 12/24/2041
195 1465*/0x0E4A, 2042, 12, 14,/* 0 1 0 1 0 0 1 0 0 1 1 1 12/14/2042
196 1466*/0x0A95, 2043, 12, 3,/* 1 0 1 0 1 0 0 1 0 1 0 1 12/3/2043
197 1467*/0x052D, 2044, 11, 21,/* 1 0 1 1 0 1 0 0 1 0 1 0 11/21/2044
198 1468*/0x0AAD, 2045, 11, 10,/* 1 0 1 1 0 1 0 1 0 1 0 1 11/10/2045
199 1469*/0x036C, 2046, 10, 31,/* 0 0 1 1 0 1 1 0 1 1 0 0 10/31/2046
200 1470*/0x0759, 2047, 10, 20,/* 1 0 0 1 1 0 1 0 1 1 1 0 10/20/2047
201 1471*/0x06D2, 2048, 10, 9,/* 0 1 0 0 1 0 1 1 0 1 1 0 10/9/2048
202 1472*/0x0695, 2049, 9, 28,/* 1 0 1 0 1 0 0 1 0 1 1 0 9/28/2049
203 1473*/0x052D, 2050, 9, 17,/* 1 0 1 1 0 1 0 0 1 0 1 0 9/17/2050
204 1474*/0x0A5B, 2051, 9, 6,/* 1 1 0 1 1 0 1 0 0 1 0 1 9/6/2051
205 1475*/0x04BA, 2052, 8, 26,/* 0 1 0 1 1 1 0 1 0 0 1 0 8/26/2052
206 1476*/0x09BA, 2053, 8, 15,/* 0 1 0 1 1 1 0 1 1 0 0 1 8/15/2053
207 1477*/0x03B4, 2054, 8, 5,/* 0 0 1 0 1 1 0 1 1 1 0 0 8/5/2054
208 1478*/0x0B69, 2055, 7, 25,/* 1 0 0 1 0 1 1 0 1 1 0 1 7/25/2055
209 1479*/0x0B52, 2056, 7, 14,/* 0 1 0 0 1 0 1 0 1 1 0 1 7/14/2056
210 1480*/0x0AA6, 2057, 7, 3,/* 0 1 1 0 0 1 0 1 0 1 0 1 7/3/2057
211 1481*/0x04B6, 2058, 6, 22,/* 0 1 1 0 1 1 0 1 0 0 1 0 6/22/2058
212 1482*/0x096D, 2059, 6, 11,/* 1 0 1 1 0 1 1 0 1 0 0 1 6/11/2059
213 1483*/0x02EC, 2060, 5, 31,/* 0 0 1 1 0 1 1 1 0 1 0 0 5/31/2060
214 1484*/0x06D9, 2061, 5, 20,/* 1 0 0 1 1 0 1 1 0 1 1 0 5/20/2061
215 1485*/0x0EB2, 2062, 5, 10,/* 0 1 0 0 1 1 0 1 0 1 1 1 5/10/2062
216 1486*/0x0D54, 2063, 4, 30,/* 0 0 1 0 1 0 1 0 1 0 1 1 4/30/2063
217 1487*/0x0D2A, 2064, 4, 18,/* 0 1 0 1 0 1 0 0 1 0 1 1 4/18/2064
218 1488*/0x0A56, 2065, 4, 7,/* 0 1 1 0 1 0 1 0 0 1 0 1 4/7/2065
219 1489*/0x04AE, 2066, 3, 27,/* 0 1 1 1 0 1 0 1 0 0 1 0 3/27/2066
220 1490*/0x096D, 2067, 3, 16,/* 1 0 1 1 0 1 1 0 1 0 0 1 3/16/2067
221 1491*/0x0D6A, 2068, 3, 5,/* 0 1 0 1 0 1 1 0 1 0 1 1 3/5/2068
222 1492*/0x0B54, 2069, 2, 23,/* 0 0 1 0 1 0 1 0 1 1 0 1 2/23/2069
223 1493*/0x0B29, 2070, 2, 12,/* 1 0 0 1 0 1 0 0 1 1 0 1 2/12/2070
224 1494*/0x0A93, 2071, 2, 1,/* 1 1 0 0 1 0 0 1 0 1 0 1 2/1/2071
225 1495*/0x052B, 2072, 1, 21,/* 1 1 0 1 0 1 0 0 1 0 1 0 1/21/2072
226 1496*/0x0A57, 2073, 1, 9,/* 1 1 1 0 1 0 1 0 0 1 0 1 1/9/2073
227 1497*/0x0536, 2073, 12, 30,/* 0 1 1 0 1 1 0 0 1 0 1 0 12/30/2073
228 1498*/0x0AB5, 2074, 12, 19,/* 1 0 1 0 1 1 0 1 0 1 0 1 12/19/2074
229 1499*/0x06AA, 2075, 12, 9,/* 0 1 0 1 0 1 0 1 0 1 1 0 12/9/2075
230 1500*/0x0E93, 2076, 11, 27,/* 1 1 0 0 1 0 0 1 0 1 1 1 11/27/2076
231 1501*/ 0, 2077, 11, 17,/* 0 0 0 0 0 0 0 0 0 0 0 0 11/17/2077
235 // Direct inline initialization of DateMapping array would produce a lot of code bloat.
237 // We take advantage of C# compiler compiles inline initialization of primitive type array into very compact code.
238 // So we start with raw data stored in primitive type array, and initialize the DateMapping out of it
240 DateMapping[] mapping = new DateMapping[rawData.Length / 4];
241 for (int i = 0; i < mapping.Length; i++)
242 mapping[i] = new DateMapping(rawData[i * 4], rawData[i * 4 + 1], rawData[i * 4 + 2], rawData[i * 4 + 3]);
246 public const int UmAlQuraEra = 1;
248 internal const int DateCycle = 30;
249 internal const int DatePartYear = 0;
250 internal const int DatePartDayOfYear = 1;
251 internal const int DatePartMonth = 2;
252 internal const int DatePartDay = 3;
254 //internal static Calendar m_defaultInstance;
257 // This is the minimal Gregorian date that we support in the UmAlQuraCalendar.
258 internal static DateTime minDate = new DateTime(1900, 4, 30);
259 internal static DateTime maxDate = new DateTime((new DateTime(2077, 11, 16, 23, 59, 59, 999)).Ticks + 9999);
261 /*=================================GetDefaultInstance==========================
262 **Action: Internal method to provide a default intance of UmAlQuraCalendar. Used by NLS+ implementation
263 ** and other calendars.
267 ============================================================================*/
269 internal static Calendar GetDefaultInstance() {
270 if (m_defaultInstance == null) {
271 m_defaultInstance = new UmAlQuraCalendar();
273 return (m_defaultInstance);
279 public override DateTime MinSupportedDateTime
288 public override DateTime MaxSupportedDateTime
297 // Return the type of the UmAlQura calendar.
301 public override CalendarAlgorithmType AlgorithmType {
303 return CalendarAlgorithmType.LunarCalendar;
307 // Construct an instance of UmAlQura calendar.
309 public UmAlQuraCalendar() {
312 internal override int BaseCalendarID {
318 internal override int ID {
320 return (CAL_UMALQURA);
324 protected override int DaysInYearBeforeMinSupportedYear
328 // HijriCalendar has same number of days as UmAlQuraCalendar for any given year
329 // HijriCalendar says year 1317 has 355 days.
334 /*==========================ConvertHijriToGregorian==========================
335 ** Purpose: convert Hdate(year,month,day) to Gdate(year,month,day)
337 ** Input: Hijrah date: year:HijriYear, month:HijriMonth, day:HijriDay
338 ** Output: Gregorian date: year:yg, month:mg, day:dg
339 =========================ConvertHijriToGregorian============================*/
340 static void ConvertHijriToGregorian(int HijriYear, int HijriMonth, int HijriDay, ref int yg, ref int mg, ref int dg)
342 Contract.Assert( (HijriYear >= MinCalendarYear) && (HijriYear <= MaxCalendarYear), "Hijri year is out of range.");
343 Contract.Assert( HijriMonth >= 1, "Hijri month is out of range.");
344 Contract.Assert( HijriDay >= 1, "Hijri day is out of range.");
345 int index, b, nDays = HijriDay-1;
349 index = HijriYear - MinCalendarYear;
350 dt = HijriYearInfo[index].GregorianDate;
353 b = HijriYearInfo[index].HijriMonthsLengthFlags;
355 for(int m = 1; m < HijriMonth; m++)
357 nDays += 29 + (b & 0x1);
361 dt = dt.AddDays(nDays);
367 /*=================================GetAbsoluteDateUmAlQura==========================
368 **Action: Gets the Absolute date for the given UmAlQura date. The absolute date means
369 ** the number of days from January 1st, 1 A.D.
373 ============================================================================*/
374 static long GetAbsoluteDateUmAlQura(int year, int month, int day) {
375 //Caller should check the validaty of year, month and day.
378 ConvertHijriToGregorian(year, month, day, ref yg, ref mg, ref dg);
379 return GregorianCalendar.GetAbsoluteDate(yg,mg,dg);
382 static internal void CheckTicksRange(long ticks) {
383 if (ticks < minDate.Ticks || ticks > maxDate.Ticks) {
384 throw new ArgumentOutOfRangeException(
387 CultureInfo.InvariantCulture,
388 Environment.GetResourceString("ArgumentOutOfRange_CalendarRange"),
394 static internal void CheckEraRange(int era) {
395 if (era != CurrentEra && era != UmAlQuraEra) {
396 throw new ArgumentOutOfRangeException("era", Environment.GetResourceString("ArgumentOutOfRange_InvalidEraValue"));
400 static internal void CheckYearRange(int year, int era) {
402 if (year < MinCalendarYear || year > MaxCalendarYear) {
403 throw new ArgumentOutOfRangeException(
406 CultureInfo.CurrentCulture,
407 Environment.GetResourceString("ArgumentOutOfRange_Range"),
413 static internal void CheckYearMonthRange(int year, int month, int era) {
414 CheckYearRange(year, era);
415 if (month < 1 || month > 12) {
416 throw new ArgumentOutOfRangeException("month", Environment.GetResourceString("ArgumentOutOfRange_Month"));
420 /*========================ConvertGregorianToHijri============================
421 ** Purpose: convert DateTime to Hdate(year,month,day)
424 ** Output: Hijrah date: year:HijriYear, month:HijriMonth, day:HijriDay
425 ============================================================================*/
426 static void ConvertGregorianToHijri(DateTime time, ref int HijriYear, ref int HijriMonth, ref int HijriDay)
429 int index, b, DaysPerThisMonth;
432 int yh1=0, mh1=0, dh1=0;
434 Contract.Assert((time.Ticks >= minDate.Ticks) && (time.Ticks <= maxDate.Ticks), "Gregorian date is out of range.");
436 // Find the index where we should start our search by quessing the Hijri year that we will be in HijriYearInfo.
437 // A Hijri year is 354 or 355 days. Use 355 days so that we will search from a lower index.
439 index = (int)((time.Ticks - minDate.Ticks) / Calendar.TicksPerDay) / 355;
442 } while (time.CompareTo(HijriYearInfo[++index].GregorianDate)>0); //while greater
444 if (time.CompareTo(HijriYearInfo[index].GregorianDate) != 0)
449 ts = time.Subtract(HijriYearInfo[index].GregorianDate);
450 yh1 = index + MinCalendarYear;
454 nDays = ts.TotalDays;
455 b = HijriYearInfo[index].HijriMonthsLengthFlags;
456 DaysPerThisMonth = 29 + (b&1);
458 while (nDays >= DaysPerThisMonth)
460 nDays -= DaysPerThisMonth;
462 DaysPerThisMonth = 29 + (b&1);
472 /*=================================GetDatePart==========================
473 **Action: Returns a given date part of this <i>DateTime</i>. This method is used
474 ** to compute the year, day-of-year, month, or day part.
477 **Exceptions: ArgumentException if part is incorrect.
479 ** First, we get the absolute date (the number of days from January 1st, 1 A.C) for the given ticks.
480 ** Use the formula (((AbsoluteDate - 226894) * 33) / (33 * 365 + 8)) + 1, we can a rough value for the UmAlQura year.
481 ** In order to get the exact UmAlQura year, we compare the exact absolute date for UmAlQuraYear and (UmAlQuraYear + 1).
482 ** From here, we can get the correct UmAlQura year.
483 ============================================================================*/
485 internal virtual int GetDatePart(DateTime time, int part) {
486 int UmAlQuraYear=0; // UmAlQura year
487 int UmAlQuraMonth=0; // UmAlQura month
488 int UmAlQuraDay=0; // UmAlQura day
489 long ticks = time.Ticks;
490 CheckTicksRange(ticks);
492 ConvertGregorianToHijri(time, ref UmAlQuraYear, ref UmAlQuraMonth, ref UmAlQuraDay);
494 if (part == DatePartYear)
495 return (UmAlQuraYear);
497 if (part == DatePartMonth)
498 return (UmAlQuraMonth);
500 if (part == DatePartDay)
501 return (UmAlQuraDay);
503 if (part == DatePartDayOfYear)
504 return (int)(GetAbsoluteDateUmAlQura(UmAlQuraYear, UmAlQuraMonth, UmAlQuraDay) - GetAbsoluteDateUmAlQura(UmAlQuraYear, 1, 1) + 1);
506 // Incorrect part value.
507 throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_DateTimeParsing"));
510 // Returns the DateTime resulting from adding the given number of
511 // months to the specified DateTime. The result is computed by incrementing
512 // (or decrementing) the year and month parts of the specified DateTime by
513 // value months, and, if required, adjusting the day part of the
514 // resulting date downwards to the last day of the resulting month in the
515 // resulting year. The time-of-day part of the result is the same as the
516 // time-of-day part of the specified DateTime.
518 // In more precise terms, considering the specified DateTime to be of the
519 // form y / m / d + t, where y is the
520 // year, m is the month, d is the day, and t is the
521 // time-of-day, the result is y1 / m1 / d1 + t,
522 // where y1 and m1 are computed by adding value months
523 // to y and m, and d1 is the largest value less than
524 // or equal to d that denotes a valid day in month m1 of year
529 public override DateTime AddMonths(DateTime time, int months) {
530 if (months < -120000 || months > 120000) {
531 throw new ArgumentOutOfRangeException(
534 CultureInfo.CurrentCulture,
535 Environment.GetResourceString("ArgumentOutOfRange_Range"),
539 Contract.EndContractBlock();
540 // Get the date in UmAlQura calendar.
541 int y = GetDatePart(time, DatePartYear);
542 int m = GetDatePart(time, DatePartMonth);
543 int d = GetDatePart(time, DatePartDay);
544 int i = m - 1 + months;
550 m = 12 + (i + 1) % 12;
551 y = y + (i - 11) / 12;
556 int days = GetDaysInMonth(y, m);
561 CheckYearRange(y, UmAlQuraEra);
562 DateTime dt = new DateTime(GetAbsoluteDateUmAlQura(y, m, d) * TicksPerDay + time.Ticks % TicksPerDay);
563 Calendar.CheckAddResult(dt.Ticks, MinSupportedDateTime, MaxSupportedDateTime);
567 // Returns the DateTime resulting from adding the given number of
568 // years to the specified DateTime. The result is computed by incrementing
569 // (or decrementing) the year part of the specified DateTime by value
570 // years. If the month and day of the specified DateTime is 2/29, and if the
571 // resulting year is not a leap year, the month and day of the resulting
572 // DateTime becomes 2/28. Otherwise, the month, day, and time-of-day
573 // parts of the result are the same as those of the specified DateTime.
577 public override DateTime AddYears(DateTime time, int years) {
578 return (AddMonths(time, years * 12));
581 // Returns the day-of-month part of the specified DateTime. The returned
582 // value is an integer between 1 and 31.
586 public override int GetDayOfMonth(DateTime time) {
587 return (GetDatePart(time, DatePartDay));
590 // Returns the day-of-week part of the specified DateTime. The returned value
591 // is an integer between 0 and 6, where 0 indicates Sunday, 1 indicates
592 // Monday, 2 indicates Tuesday, 3 indicates Wednesday, 4 indicates
593 // Thursday, 5 indicates Friday, and 6 indicates Saturday.
597 public override DayOfWeek GetDayOfWeek(DateTime time) {
598 return ((DayOfWeek)((int)(time.Ticks / TicksPerDay + 1) % 7));
601 // Returns the day-of-year part of the specified DateTime. The returned value
602 // is an integer between 1 and 354 or 355.
606 public override int GetDayOfYear(DateTime time) {
607 return (GetDatePart(time, DatePartDayOfYear));
611 internal bool CouldBeLeapYear(int year)
613 return ((((year * 11) + 14) % 30) < 11);
617 // Returns the number of days in the month given by the year and
622 public override int GetDaysInMonth(int year, int month, int era) {
623 CheckYearMonthRange(year, month, era);
625 if ((HijriYearInfo[year-MinCalendarYear].HijriMonthsLengthFlags & (1<<month-1))==0)
631 static internal int RealGetDaysInYear(int year)
635 Contract.Assert( (year >= MinCalendarYear) && (year <= MaxCalendarYear), "Hijri year is out of range.");
637 b = HijriYearInfo[year-MinCalendarYear].HijriMonthsLengthFlags;
639 for(int m = 1; m <= 12; m++)
641 days += 29 + (b & 0x1);
644 Contract.Assert((days == 354)||(days == 355), "Hijri year has to be 354 or 355 days.");
648 // Returns the number of days in the year given by the year argument for the current era.
652 public override int GetDaysInYear(int year, int era)
654 CheckYearRange(year, era);
655 return (RealGetDaysInYear(year));
658 // Returns the era for the specified DateTime value.
661 public override int GetEra(DateTime time) {
662 CheckTicksRange(time.Ticks);
663 return (UmAlQuraEra);
668 public override int[] Eras {
670 return (new int[] {UmAlQuraEra});
674 // Returns the month part of the specified DateTime. The returned value is an
675 // integer between 1 and 12.
679 public override int GetMonth(DateTime time) {
680 return (GetDatePart(time, DatePartMonth));
683 // Returns the number of months in the specified year and era.
686 public override int GetMonthsInYear(int year, int era) {
687 CheckYearRange(year, era);
691 // Returns the year part of the specified DateTime. The returned value is an
692 // integer between MinCalendarYear and MaxCalendarYear.
696 public override int GetYear(DateTime time) {
697 return (GetDatePart(time, DatePartYear));
700 // Checks whether a given day in the specified era is a leap day. This method returns true if
701 // the date is a leap day, or false if not.
705 public override bool IsLeapDay(int year, int month, int day, int era) {
706 if (day>=1 && day <=29)
708 CheckYearMonthRange(year, month, era);
712 // The year/month/era value checking is done in GetDaysInMonth().
713 int daysInMonth = GetDaysInMonth(year, month, era);
714 if (day < 1 || day > daysInMonth) {
715 throw new ArgumentOutOfRangeException(
718 CultureInfo.CurrentCulture,
719 Environment.GetResourceString("ArgumentOutOfRange_Day"),
726 // Returns the leap month in a calendar year of the specified era. This method returns 0
727 // if this calendar does not have leap month, or this year is not a leap year.
731 public override int GetLeapMonth(int year, int era)
733 CheckYearRange(year, era);
737 // Checks whether a given month in the specified era is a leap month. This method returns true if
738 // month is a leap month, or false if not.
742 public override bool IsLeapMonth(int year, int month, int era) {
743 CheckYearMonthRange(year, month, era);
747 // Checks whether a given year in the specified era is a leap year. This method returns true if
748 // year is a leap year, or false if not.
752 public override bool IsLeapYear(int year, int era)
754 CheckYearRange(year, era);
755 if (RealGetDaysInYear(year) == 355)
761 // Returns the date and time converted to a DateTime value. Throws an exception if the n-tuple is invalid.
765 public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era) {
766 if (day >= 1 && day <= 29)
768 CheckYearMonthRange(year, month, era);
772 // The year/month/era value checking is done in GetDaysInMonth().
773 int daysInMonth = GetDaysInMonth(year, month, era);
775 if (day < 1 || day > daysInMonth) {
776 BCLDebug.Log("year = " + year + ", month = " + month + ", day = " + day);
777 throw new ArgumentOutOfRangeException(
780 CultureInfo.CurrentCulture,
781 Environment.GetResourceString("ArgumentOutOfRange_Day"),
786 long lDate = GetAbsoluteDateUmAlQura(year, month, day);
789 return (new DateTime(lDate * GregorianCalendar.TicksPerDay + TimeToTicks(hour, minute, second, millisecond)));
791 throw new ArgumentOutOfRangeException(null, Environment.GetResourceString("ArgumentOutOfRange_BadYearMonthDay"));
795 private const int DEFAULT_TWO_DIGIT_YEAR_MAX = 1451;
799 public override int TwoDigitYearMax {
801 if (twoDigitYearMax == -1) {
802 twoDigitYearMax = GetSystemTwoDigitYearSetting(ID, DEFAULT_TWO_DIGIT_YEAR_MAX);
804 return (twoDigitYearMax);
808 if (value != 99 && (value < MinCalendarYear || value > MaxCalendarYear)) {
809 throw new ArgumentOutOfRangeException(
812 CultureInfo.CurrentCulture,
813 Environment.GetResourceString("ArgumentOutOfRange_Range"),
817 Contract.EndContractBlock();
819 // We allow year 99 to be set so that one can make ToFourDigitYearMax a no-op by setting TwoDigitYearMax to 99.
820 twoDigitYearMax = value;
826 public override int ToFourDigitYear(int year) {
828 throw new ArgumentOutOfRangeException("year",
829 Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
831 Contract.EndContractBlock();
834 return (base.ToFourDigitYear(year));
837 if ((year < MinCalendarYear) || (year > MaxCalendarYear)) {
838 throw new ArgumentOutOfRangeException(
841 CultureInfo.CurrentCulture,
842 Environment.GetResourceString("ArgumentOutOfRange_Range"),