Multiple choice general knowledge

which city is used as reference longitude for indian standard time?

  1. gaya

  2. chennai

  3. mirzapur

  4. lucknow

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Indian Standard Time is calculated from the longitude of 82.5°E, which passes near Mirzapur in Uttar Pradesh. This reference meridian was chosen to balance time differences across the country's width. The IST is 5 hours 30 minutes ahead of UTC.