Northeast blackout of 2003
Most places got power back by midnight (in about 7 hours since it was lost), some as early as 6 p.m. on August 14 (in 2 hours since it was lost), while the New York City Subway started serving customers again by 8 p.m. Full power came back to New York City and Toronto on August 16. It was the world's second biggest blackout in history, second to the 1999 Southern Brazil blackout.