How long is the opera Tosca?

Tosca is an opera in three acts by Giacomo Puccini. It was first performed at the Teatro Costanzi in Rome on January 14, 1900. The opera is set in Rome in 1800, during the Napoleonic Wars. It tells the story of a famous opera singer, Floria Tosca, and her lover, Mario Cavaradossi, a painter. Tosca is caught in a love triangle with Cavaradossi and the evil police chief, Baron Scarpia. The opera is full of drama and suspense, and it features some of Puccini's most beautiful music. The performance time of Tosca is approximately two hours and thirty minutes.