Choghadiya
The eight day and eight night choghadiya periods for any date and place, from local sunrise and sunset.
Questions
What is choghadiya?
A Gujarati and North Indian muhurat system dividing daytime (sunrise to sunset) and night (sunset to next sunrise) into eight parts each, ruled in turn by the seven grahas.
Which choghadiya is good?
Amrit, Shubh and Labh are auspicious for new work; Char is fine for travel; Udveg, Kaal and Rog are avoided.
Why do timings differ by city?
Each period is one-eighth of the local day or night, so it moves with local sunrise and sunset.