About New Delhi time
New Delhi keeps India Standard Time (UTC+5:30), the single clock that governs the whole of India from the national capital.
Because one zone stretches across a country wide enough to justify two, sunrise in the far northeast can come around 04:00 by the clock while the west is still dark — a recurring argument for splitting IST that has never been adopted. Government and parliamentary schedules in New Delhi run on this half-hour offset, which quietly complicates international scheduling.
Single nationwide ISTHalf-hour UTC offsetGovernment & policy hours