When It's Lamp Lighting Time in the Valley

When It's Lamp Lighting Time in the Valley is a 1933 country ballad to a waltz melody with words and music by Joe Lyons, Sam C. Hart and The Vagabonds, Curt Poulton, Herald Goodman, and Dean Upson. The song was a hit by The Vagabonds. The song lyrics are about one who longs for his mother, who is far away in a valley. Marty Robbins later covered the song. Other singers who has recorded the song include Tex Ritter and Wayne King.

In 1936, Larry Vincent and Harry Pease released a song with the same melody titled "When the Sun Says Goodnight to the Mountain". This song was later translated into French and became popular in Canada as "Quand le soleil dit bonjour aux montanges", and a bilingual cover by Lucille Starr became an international hit and Canada's first single to sell more than a million copies.