[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Archaeology, epigraphy and coins](https://indike.org/pramana/ins.epigraphy) › [Book of Indian Eras, with Tables for Calculating Indian Dates](https://indike.org/pramana/ins.epigraphy.cunningham-1883) › c8.12 # Book of Indian Eras, with Tables for Calculating Indian Dates c8.12 Book of Indian Eras, with Tables for Calculating Indian Dates c8.12 - **Language:** English ### [c8.12](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.12) \*Rule.\*—Find the equivalent year of the Saka era, and multiply it by 22, then add 4291 to the product, and divide by 1875. Add the quotient without fractions to the Saka date, and divide the sum by 60. This quotient gives the number of expired cycles, and the remainder the number of expired years of the current cycle counting from Prabhava. To find the year of the 12-year cycle divide the last remainder by 12; the quotient will give the number of Jupiter's own revolutions completed, and the remainder will be the number of years expired of the current 12-year cycle, counting from Mahâ-Srâvana as the first. The following example will show the working of the rules: Take A. D. 166 = 88 Saka. - [Previous: c8.11](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.11) - [Next: c8.13](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.13) - [Up: c8](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8) --- Source: [https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.12](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.12) · Pramāṇa