No more than 12 hours' notice

Writing in the Times of London (and reprinted in The Australian - both of which are now behind pay walls), the sensationalist Uzi Mahnaimi is claiming that Israel has told the United States that it will give no more than 12 hours' advance notice of an attack on Iran. Israeli officials told visiting USS Chief Joint of Staffs Martin Dempsey that it would give President Barack Obama no more than 12