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9.6.2
Indian Civil Calendar |
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The Council of Scientific and Industrial Research of the government of India appointed a Calendar Reform Committee in November 1952 under the chairmanship of Professor Meghnad Saha. The Committee submitted its report in 1955, and the government declared that a unified National Calendar should be adopted, effective 21 March A.D. 1956. |
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The Indian civil calendar is the one implemented by SCDTL. |
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The Indian civil calendar is a careful blend of modern solar calendar with Indian tradition. The end product is remarkably like the Persian Solar calendar (see the following). |
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9.6.2.1.1
Structural Details |
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Structurally, the Indian civil calendar is a solar calendar of 12 months with a fixed number of days in each month and a leap year rule, which adds an intercalary day at the end of the first month in leap years. |
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The leap year rule is essentially the Gregorian rule, which is used with a constant year offset. Calculation of leap year is accomplished by adding 78 to the Indian civil |
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| Table 9.21 Indian civil calendar as of A.D. 1950. | | Indian Month | Ecliptic Degrees | Surya Siddhanta | Modern | Indian Calendar | | | (da hr min) | (da hr min) | (days) | | Caitra | 030 | 30 22 26.8 | 30 11 25.2 | 30 | | Vaisakha | 3060 | 31 10 5.2 | 30 23 29.6 | 31 | | Jyaistha | 6090 | 31 15 28.4 | 31 8 10.1 | 31 | | Asadha | 90120 | 31 11 24.4 | 31 10 54.6 | 31 | | Sravana | 120150 | 31 0 26.8 | 31 6 53.1 | 31 | | Bhadra | 150180 | 30 10 35.6 | 30 21 18.7 | 31 | | Asvina | 180210 | 29 21 26.4 | 30 8 58.2 | 30 | | Kartika | 210240 | 29 11 46.0 | 29 21 14.6 | 30 | | Agrahayana | 240270 | 29 7 37.6 | 29 13 8.7 | 30 | | Pausa | 270300 | 29 10 45.2 | 29 10 38.6 | 30 | | Magha | 300330 | 29 19 41.2 | 29 14 18.5 | 30 | | Phalguna | 330360 | 30 8 29.0 | 29 23 18.9 | 30 |
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