Town officials have announced the dates of the annual election and spring Town Meeting. The election is set for April 9, while Town Meeting is slated to convene at 7:30 p.m. April 23 at the new Natick High School, 15 West St. The date was pushed back by two weeks to avoid conflict with the Jewish holiday of Passover, town officials said. Residents have until 5 p.m. Feb. 22 to deliver proposed warrant articles to the Board of Selectmen’s office in Town Hall, 13 East Central St., according to the town’s announcement. The finalized warrant is expected to be posted online at www.natickma.gov within a week after the deadline.