Quadrennial occasion celebrated by this puzzle's theme entries

Question:

Answer:

LEAPDAY

Length:

Similar Crossword Questions:

What the constructor had to do to create the theme entries in this puzzle (boyeee)
This puzzle's theme entries, e.g.
What the three theme entries in this puzzle are, in either of two ways
Playoff series finale ... or an apt title for this puzzle considering the number and length of its theme entries
What this puzzle's theme entries are
Office building problem that's a hint to this puzzle's theme entries (see their last three letters)
Many people get one in the summer (and so do this puzzle's theme entries)
Word that has two diametrically opposed meanings (like this puzzle's eight theme entries)
"Lid" in each of this puzzle's theme entries
Activity suggested by this puzzle's theme entries
December 21, and the occasion for this puzzle's theme
Levels that are split in this puzzle's theme entries
Just making things up, or a synonym for a three-word phrase describing this puzzle's theme entries
The three in each of this puzzle's theme entries
Nickname for the three-letter abbreviation hidden in this puzzle's theme entries
What each of this puzzle's theme entries contains
Gym gear hidden in this puzzle's theme entries
People who bring you this puzzle's theme entries
Like the four theme entries in this puzzle, as it were
What this puzzle's theme entries have
Where to find the theme entries of this puzzle, briefly
It can follow the last word of this puzzle's theme entries
Period that ends Nov. 3rd, requiring a shift, and letters that shift in this puzzle's theme entries
Word hidden in this puzzle's theme entries
There's one at the beginning of each of this puzzle's four theme entries