When Eric Draven comes back from the dead it's "Devils Night", (the night before Halloween - as the movies opening titles say). This is mentioned a couple of times: Tin Tin says that "Halloween is manyana"("manyana" is "tomorrow" in spanish) right before Eric kills him, T-Bird says "Devils Night is my new favorite holiday", and in the scene where Sarahs mother is making her breakfast you can hear the news report on the TV talking about what happened on Devils Night last night. Later on in the movie, on HALLOWEEN night, Top Dollar is talking to a bunch of people and says that "Devils Night is upon us again". A few minutes later Eric Draven sees some trick-or-treaters.