the days of smb. (or smth., тж. one's days) are numbered

   eгo (eё и т. д.) дни coчтeны; дни кoгo-л. (или чeгo-л.) coчтeны

    You may not know it, Wasserman, but your days are numbered (M. Dodd). Like harem slaves they [cars] are bought for their bodily beauty and changed before it begins to fade. Some, it is true, survive... but even their days are numbered (The Scotsman)