I understand seasonal changes affecting us, sunshine always makes me happier, more energetic, and inloveness, while winter, the thunderstorms always leave a feeling of melancholy and being all philisophical, or wonderment,but the cold makes me sad and irritable... Time changes tho? No I dont get it, unless you usually feel different during night and day, coz apart from night and day, time is a man-made mathematical equation... Then again, I cant judge, our clocks dont get tampered with...