Skip to main content
7 votes
Accepted

Why does the sunrise time at a particular location at a particular date change abruptly over the years?

@Teemu had the right idea: It's time zones. The specified location is in Kolkata, formerly Calcutta. Years before the adoption of India Standard Time (UTC+5:30), Kolkata had its own time zone, ...
David Hammen's user avatar
  • 36.3k

Only top scored, non community-wiki answers of a minimum length are eligible