make one's day
Give one great pleasure, as in Hearing you won first prize just made my day. This phrase, which uses make in the sense of “secure success in,” was first recorded in 1909.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.