First DC movie it is Conan's/Shinichi's b-day......so I guess technically it does.....what gets me tho....the math I did had to be wrong cause in the manga it goes through all the seasons.....summer, spring, fall, and winter.....which would take longer than 8 months to do....I didn't think about that until just now. Nonetheless Conan and the gang is still in first grade.....odd if you think about it.