Usually the time limit is imposed by the end of the Parliamentary session when all parliamentary business, including incomplete Bills, is ended and must start again from scratch in the next session. This usually occurs at the State Opening of Parliament in November; parliament can continue working on the previous year's business up to the night before. Another instance is the wash-up period of a few days between the calling of a general election and the ensuing dissolution of parliament. More rarely, the time limit may be imposed by outside events, such as an impending deadline from a court order, judicial review, or events in foreign affairs.