Science Fiction Day 2025 Theme. Science fiction day is celebrated on thursday, january 2, 2025. Celebrated on january 2nd every year, science fiction day is an unofficial holiday that celebrates everything science fiction.

National science fiction day is celebrated annually on january 2nd to honor the birthday of renowned science fiction writer isaac asimov. The theme of national science fiction day is to celebrate the genre of science fiction, its history, creators, and different media.