Question

how is IST calculated

Answer 1

Answer:

Indian Standard time (IST) is the time zone observed throughout India, with a time offset of UTC+05:30. ... Indian Standard Time is calculated on the basis of 82.5°E longitude in the city of Mirzapur, Uttar Pradesh, which is situated approximately on the corresponding longitude reference line.After conducting the time study, you compute the mean observed time for each work element. You compute the normal time for the work element by multiplying the mean observed time by the performance rating factor. You find the standard time for each work element by multiplying the normal time by the allowance factor