The New York City Police Department says not a single murder, shooting, stabbing or slashing was reported in the five boroughs on Monday.
The rare crime-free streak began around 10:30 Sunday night and lasted until about 11:20 Tuesday morning when a 27-year-man was shot in Brooklyn.
Police officials could not say when they last saw a similar crime-free streak.
NYPD statistics show the city has come a long way since 1990, when there was an average of more than six murders a day and 2,200 a year.
This year, the city is on pace for just about 400 murders.