The Shaka era also known as Shali Vahana (S.V) is a historical Hindu calendar era (year numbering), the epoch (its year zero) of which corresponds to 78 CE. The Shaka era uses expired, elapsed, or complete years, where a year must have elapsed before it can be counted. This is similar to the Western method of determining a person's age, whose first year must have been completed before that person reaches one year old. The uncounted first year of the era is numbered as year zero.
The era has been widely used in different regions of the Indian subcontinent as well as in Southeast Asia. According to the Government of India, it is referred as the Shalivahana Era.