8:30 a.m. Anti-Bush rally and protest at Dag Hammarskjold Plaza, outside the U.N., 47th Street and First Avenue.
9 a.m. Tibetan supporters protest the arrival of Chinese Premier Wen Jiabao at the Waldorf-Astoria Hotel, 301 Park Ave.
9:30 a.m. Joel Klein attends opening of the new Harlem D.N.A. laboratory at John S. Roberts Education Complex, 2351 First Ave.
10 a.m. Council Member Larry Seabrook holds a hearing on the lack of diversity in the advertising industry. At City Hall, in the Council Chambers.
10:30 a.m. Council Members Joe Addabbo and John Liu present signatures from the Fight the Hike campaign outside M.T.A. headquarters, 347 Madison Ave.
11 a.m. Iranians hold rally against Iranian president Mahmoud Ahmadinejad, at Dag Hammarskjold U.N. Plaza.
11 a.m. The Assembly Committee on Education holds a hearing on the needs of English-language learners and students with limited English proficiency. In the Assembly Hearing Room, 250 Broadway.
11:30 a.m. ACORN members hold a rally and press conference to call on the Federal Reserve to bail out homeowners and not just financial institutions. At the Federal Reserve, 33 Liberty St.
Noon. State Senator Liz Krueger attends a rally to push for the strengthening of state mold regulations, on the City Hall Steps.
Noon. A rally to protest child executions in Iran will be held at Dag Hammarskjold Plaza.
12:30 p.m. Deputy Mayor Robert Lieber announces a workforce development program for workers in Willets Point, which is slated for redevelopment. At the New York Hotel Trades Council & Hotel Association of New York City, 37-01 Queens Blvd. Long Island City.
2 p.m. Council Member Tony Avella announces a drive to collect used cell phones at 38-50 Bell Blvd. in Bayside.
4:45 p.m. The World Business Forum hosts a discussion called "Dialogue: U.S. & The World," featuring Colin Powell and Madeleine Albright. At Radio City Music Hall.
6 p.m. New School president Bob Kerrey and journalist Linda Greenhouse discuss election year courts and Constitutional issues; Arnhold Hall, Theresa Lang Community and Student Center, The New School, 55 West 13th St., Second Floor, near Sixth Avenue..
6:30 p.m. The Coalition to Preserve Community,which opposes Columbia’s expansion into Harlem, will have a general organizational meeting at St. Mary’s Church, 521 West 126th Street.
6:30 p.m. Princess Ghida Talal of Jordan and ALCOA C.E.O. Klaus Kleinfeld are honored at the Institute of International Education’s International Awards Gala; The Plaza Hotel, Fifth Avenue and Central Park South.
7 p.m. Salman Rushdie, Orphan Pamuk, Kiran Desai and other writers hold a benefit reading for Burma cyclone relief at The Great Hall of Cooper Union, 7 East 7th St.
All day. The World Business Forum is held at Radio City Music Hall.