"To win the day" means to achieve victory or success in a particular situation or task.
Sentences with «to win the day»
Competition was fierce in all three fields, but each saw a clear winner... and one game in particular won the day in two of the three available categories. (blog.us.playstation.com)
But given the choice, molasses cookies usually win the day for me.... (healthysweeteats.com)
Fantastic Four manages to stick to its roots and, as a result, wins the day with good ol' fashioned action and non-stop comic book action, like the film itself. (metacritic.com)