Sunday Dalí: The Triangular Hour, 1933. Oil on canvas, 61 x 46 cm.

From Dalí-Gallery:

The watch is mounted on a rock formation as if hung on a kitchen wall. Underneath is a hole in the rock through which we see an Ampordan plain, where the figure of a child with a hoop can be seen. At the top of the rock formation is the bust of a Classical man, his face in a grimace. Dalí has placed rocks on top of the bust, as well as on top of the rock formation and on the other rock in the shadowy foreground. One interpretation of this painting is that Dalí is viewing mankind and time as governed by the solidity of nature.

I certainly see the shape of the bust reflected in the yellowish cloud. The rock that is across the head of the bust is a theme that reoccurs in Retrospective Bust of a Woman from the same year.