English: Graph showing variation of sunset after 5pm for Greenwich GB. There are two curves given, one using GMT/BST and one showing what would happen if GB changed over to CET/CST. The discontinuities are due to the change over in spring and autumn for daylight saving. Negative times mean that sunset happened before 5pm, i.e. it may still be dark at 17:00.
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{{Information |Description={{en|1=Graph showing variation of sunset after 5pm for Greenwich GB. There are two curves given, one using GMT/BST and one showing what would happen if GB changed over to CET/CST. The discontinuities are due to the change over i