The tables on the following pages are prepared by India Meteorological Department (IMD). The data was supplied by Positional Astronomical Centre of IMD functioningfunctioning at Kolkata.
1.1.
The times in the table are given in IST (Indian Standard Time; 05:30 hours ahead of UTC), and include timings for beginning of Civil Morning Twilight (TWIL from),
Sunrise, Sunset and end of Civil Evening Twilight (TWIL to) for the year 2018.
1.2.
The times given for the beginning of Civil Morning Twilight and end of Civil Evening Twilight are calculated for an altitude of the Sun; 6 DEG below the horizon, as