Tradition in North America, where the output of any place Marmot hibernation announces the end of the (Northern) winter and usually cause for celebration. The most famous is in the town of Punxsutawney (Pennsylvania, USA), because of the film Groundhog Day (Harold Ramis, 1993). In this fantasy movie the main character repeats a cycle of time every day, so the phrase "live a Groundhog Day" also means that a prolonged déjà-vu feel, or that the daily events are repeating.
