THE DARIAN SYSTEM

Abstract

Figures and Tables

1.0 The Darian Calendar for Mars

1.1 Introduction

1.2 Years

1.2.1 An Extended Intercalation Scheme

1.3 Months and Seasons

1.4 Weeks

1.4.1 The Martiana Calendar

1.5 The Telescopic Epoch

1.6 Darian-Gregorian Calendar Displays

1.7 Children and Collateral Relatives

2.0 The Calendars of Jupiter

2.1 Introduction

2.2 Circads

2.3 Years

2.4 Weeks

2.5 Months

2.6 Intercalation

2.7 Calibration

2.8 Variations on a Martian Theme

3.0 The Darian Calendar for Titan

3.1 Overview of the Darian Calendar System

3.2 Astronomical Cycles on Titan

3.3 Circads and Weeks

3.4 Months and Years

3.5 Intercalation

3.6 Calibration

4.0 Conclusion

5.0 References

Appendix 1: Intercalation Precision on Mars

Appendix 2: Perturbations of Mars

Appendix 3: Martian Daylight Time

THE DARIAN SYSTEM

Copyright © 1986-2005 by Thomas Gangale

SUMMER SOLSTICES OF MARS
Gregorian Date UTC Julian Day Darian Date AMT Julian Sol
1874 December 10 11:28 2405867.478 141 Pisces 27 17:15 94465.719
1876 October 27 10:52 2406554.453 142 Pisces 27 07:31 95134.313
1878 September 14 10:07 2407241.422 143 Pisces 27 21:39 95802.902
1880 August 01 09:23 2407928.391 144 Pisces 27 11:46 96471.491
1882 June 19 09:07 2408615.380 145 Pisces 28 02:22 97140.099
1884 May 06 08:16 2409302.345 146 Pisces 27 16:24 97808.684
1886 March 24 06:59 2409989.291 147 Pisces 28 05:59 98477.250
1888 February 09 05:54 2410676.246 148 Pisces 27 19:48 99145.825
1889 December 27 05:13 2411363.218 149 Pisces 28 09:59 99814.417
1891 November 14 04:40 2412050.195 150 Pisces 28 00:18 100483.013
1893 October 01 04:13 2412737.176 151 Pisces 27 14:43 101151.613
1895 August 19 03:38 2413424.152 152 Pisces 27 05:00 101820.209
1897 July 06 02:29 2414111.104 153 Pisces 27 18:44 102488.781
1899 May 24 01:23 2414798.058 154 Pisces 27 08:31 103157.355
1901 April 11 00:37 2415485.026 155 Pisces 27 22:37 103825.943
1903 February 26 23:55 2416171.997 156 Pisces 27 12:47 104494.533
1905 January 13 23:21 2416858.973 157 Pisces 28 03:05 105163.129
1906 December 01 23:15 2417545.969 158 Pisces 27 17:50 105831.744
1908 October 18 22:23 2418232.933 159 Pisces 28 07:51 106500.328
1910 September 05 21:10 2418919.882 160 Pisces 27 21:31 107168.897
1912 July 23 20:21 2419606.848 161 Pisces 27 11:34 107837.482
1914 June 10 19:43 2420293.822 162 Pisces 27 01:49 108506.076
1916 April 27 18:57 2420980.790 163 Pisces 27 15:55 109174.664
1918 March 15 18:36 2421667.775 164 Pisces 27 06:25 109843.268
1920 January 31 17:38 2422354.735 165 Pisces 27 20:20 110511.848
1921 December 18 16:27 2423041.686 166 Pisces 27 10:03 111180.419
1923 November 05 15:43 2423728.655 167 Pisces 28 00:11 111849.008
1925 September 22 14:57 2424415.623 168 Pisces 27 14:17 112517.595
1927 August 10 14:09 2425102.590 169 Pisces 28 04:22 113186.182
1929 June 27 13:48 2425789.575 170 Pisces 27 18:52 113854.786
1931 May 15 13:10 2426476.549 171 Pisces 27 09:06 114523.380
1933 April 01 11:57 2427163.498 172 Pisces 26 23:46 115191.949
1935 February 17 10:50 2427850.452 173 Pisces 27 12:33 115860.523
1937 January 04 10:10 2428537.424 174 Pisces 27 02:45 116529.115
1938 November 22 09:43 2429224.405 175 Pisces 27 17:09 117197.715
1940 October 09 09:17 2429911.387 176 Pisces 27 07:35 117866.316
1942 August 27 08:55 2430598.372 177 Pisces 27 22:05 118534.921
1944 July 14 07:52 2431285.328 178 Pisces 27 11:55 119203.497
1946 June 01 06:43 2431972.280 179 Pisces 28 01:38 119872.069
1948 April 18 05:51 2432659.244 180 Pisces 27 15:39 120540.652
1950 March 06 05:05 2433346.212 181 Pisces 27 05:45 121209.240
1952 January 22 04:19 2434033.180 182 Pisces 26 20:52 121877.828
1953 December 09 04:10 2434720.174 183 Pisces 27 10:34 122546.441
1955 October 27 03:27 2435407.144 184 Pisces 27 00:43 123215.030
1957 September 13 02:06 2436094.088 185 Pisces 27 14:16 123883.595
1959 August 01 01:09 2436781.048 186 Pisces 27 04:11 124552.175
1961 June 18 00:30 2437468.021 187 Pisces 27 18:24 125220.767
1963 May 05 23:42 2438154.988 188 Pisces 27 08:29 125889.354
1965 March 22 23:18 2438841.971 189 Pisces 27 22:57 126557.956
1967 February 07 22:36 2439528.942 190 Pisces 27 13:07 127226.547
1968 December 25 21:30 2440215.896 191 Pisces 27 02:54 127895.121
1970 November 12 20:44 2440902.864 192 Pisces 26 18:00 128563.709
1972 September 29 20:03 2441589.836 193 Pisces 27 07:12 129232.300
1974 August 17 19:23 2442276.808 194 Pisces 26 22:24 129900.892
1976 July 04 18:54 2442963.788 195 Pisces 27 11:47 130569.491
1978 May 22 18:28 2443650.770 196 Pisces 27 02:13 131238.092
1980 April 08 17:15 2444337.719 197 Pisces 27 15:52 131906.662
1982 February 24 16:01 2445024.668 198 Pisces 27 05:32 132575.231
1984 January 12 15:12 2445711.634 199 Pisces 27 19:35 133243.817
1985 November 29 14:44 2446398.614 200 Pisces 27 09:58 133912.416
1987 October 17 14:11 2447085.591 201 Pisces 28 00:17 134581.012
1989 September 03 13:48 2447772.575 202 Pisces 27 14:46 135249.616
1991 July 22 12:47 2448459.533 203 Pisces 28 04:38 135918.194
1993 June 08 11:34 2449146.482 204 Pisces 27 18:18 136586.763
1995 April 26 10:36 2449833.442 205 Pisces 28 08:13 137255.343
1997 March 13 09:54 2450520.413 206 Pisces 27 22:24 137923.933
1999 January 29 09:10 2451207.382 207 Pisces 28 12:31 138592.522
2000 December 16 09:01 2451894.376 208 Pisces 28 03:14 139261.135
2002 November 03 08:35 2452581.358 209 Pisces 28 17:40 139929.736
2004 September 20 07:20 2453268.306 210 Pisces 28 07:18 140598.305
2006 August 08 06:20 2453955.264 211 Pisces 27 21:10 141266.882
2008 June 25 05:39 2454642.236 212 Pisces 27 11:22 141935.474
2010 May 13 04:53 2455329.204 213 Pisces 28 01:28 142604.062
2012 March 30 04:22 2456016.182 214 Pisces 27 15:49 143272.659
2014 February 15 03:48 2456703.159 215 Pisces 28 06:08 143941.256
2016 January 03 02:39 2457390.111 216 Pisces 27 19:51 144609.828
2017 November 20 01:45 2458077.073 217 Pisces 28 09:49 145278.410
2019 October 08 01:00 2458764.042 218 Pisces 27 23:57 145946.998
2021 August 25 00:15 2459451.011 219 Pisces 28 14:05 146615.587
2023 July 12 23:35 2460137.983 220 Pisces 28 04:17 147284.178
2025 May 29 23:15 2460824.969 221 Pisces 27 18:48 147952.784
2027 April 16 22:10 2461511.924 222 Pisces 27 08:36 148621.359
2029 March 03 20:57 2462198.873 223 Pisces 27 22:16 149289.928
2031 January 19 20:06 2462885.838 224 Pisces 27 12:18 149958.513
2032 December 06 19:40 2463572.820 225 Pisces 28 02:44 150627.114
2034 October 24 19:13 2464259.801 226 Pisces 27 17:08 151295.714
2036 September 10 18:50 2464946.785 227 Pisces 28 07:37 151964.318
2038 July 29 18:02 2465633.752 228 Pisces 27 21:42 152632.904
2040 June 15 16:50 2466320.702 229 Pisces 28 11:23 153301.475
2042 May 03 15:48 2467007.659 230 Pisces 28 01:14 153970.051
2044 March 20 15:05 2467694.629 231 Pisces 27 15:23 154638.641
2046 February 05 14:18 2468381.596 232 Pisces 27 05:28 155307.228
2047 December 24 13:56 2469068.581 233 Pisces 27 19:58 155975.832
2049 November 10 13:37 2469755.568 234 Pisces 27 10:31 156644.438
2051 September 28 12:21 2470442.515 235 Pisces 28 00:07 157313.006
2053 August 15 11:12 2471129.467 236 Pisces 27 13:51 157981.578
2055 July 03 10:26 2471816.435 237 Pisces 28 03:58 158650.165
2057 May 20 09:43 2472503.405 238 Pisces 27 18:07 159318.755
2059 April 07 09:02 2473190.377 239 Pisces 28 08:19 159987.347
2061 February 22 08:41 2473877.362 240 Pisces 27 22:49 160655.951
2063 January 10 07:40 2474564.320 241 Pisces 27 12:41 161324.529
2064 November 27 06:44 2475251.281 242 Pisces 27 02:37 161993.110
2066 October 15 06:02 2475938.252 243 Pisces 27 16:48 162661.700
2068 September 01 05:19 2476625.222 244 Pisces 27 06:57 163330.290
2070 July 20 04:37 2477312.193 245 Pisces 27 21:07 163998.880
2072 June 06 04:23 2477999.183 246 Pisces 27 11:44 164667.490
2074 April 24 03:30 2478686.146 247 Pisces 28 01:44 165336.072
2076 March 11 02:15 2479373.094 248 Pisces 27 15:22 166004.641
2078 January 27 01:16 2480060.053 249 Pisces 28 05:16 166673.220
2079 December 15 00:43 2480747.030 250 Pisces 27 19:35 167341.816
2081 November 01 00:12 2481434.009 251 Pisces 27 09:56 168010.414
2083 September 18 23:41 2482120.987 252 Pisces 27 00:16 168679.012
2085 August 05 23:00 2482807.959 253 Pisces 27 14:28 169347.603
2087 June 23 21:47 2483494.908 254 Pisces 27 04:08 170016.173
2089 May 10 20:39 2484181.861 255 Pisces 27 17:53 170684.746
2091 March 28 19:53 2484868.829 256 Pisces 27 08:00 171353.333
2093 February 12 19:10 2485555.799 257 Pisces 27 22:09 172021.923
2094 December 31 18:38 2486242.777 258 Pisces 27 12:29 172690.520
2096 November 17 18:31 2486929.772 259 Pisces 28 03:13 173359.134
2098 October 05 17:26 2487616.727 260 Pisces 27 17:01 174027.709
2100 August 23 16:16 2488303.678 261 Pisces 27 06:43 174696.281
2102 July 11 15:30 2488990.646 262 Pisces 26 21:50 175364.868
2104 May 28 14:54 2489677.621 263 Pisces 27 11:06 176033.463
2106 April 15 14:09 2490364.590 264 Pisces 27 01:14 176702.051
2108 March 02 13:52 2491051.578 265 Pisces 27 15:48 177370.659
2110 January 18 12:56 2491738.539 266 Pisces 27 05:44 178039.239
2111 December 06 11:54 2492425.496 267 Pisces 27 19:35 178707.816
2113 October 23 11:09 2493112.465 268 Pisces 27 09:43 179376.405
2115 September 10 10:22 2493799.432 269 Pisces 27 23:48 180044.992
2117 July 28 09:36 2494486.400 270 Pisces 27 13:54 180713.579
2119 June 15 09:14 2495173.385 271 Pisces 27 04:24 181382.184
2121 May 02 08:29 2495860.354 272 Pisces 26 19:32 182050.772
2123 March 20 07:13 2496547.301 273 Pisces 27 08:09 182719.340
2125 February 04 06:07 2497234.255 274 Pisces 26 22:55 183387.914
2126 December 23 05:28 2497921.228 275 Pisces 27 12:08 184056.506