The Gaza and West Bank are ending DST Thursday at midnight (2013-09-27 00:00:00) (one hour earlier than last year and current rule in tzdata). This source in English, says "that winter time will go into effect at midnight on Thursday in the West Bank and Gaza Strip": http://english.wafa.ps/index.php?action=detail&id=23246 and also mentions it here: http://english.wafa.ps/index.php?action=detail&id=23254 The official source and this other source in Arabic, with Google Translate translates to "Friday night", we assume this English source was based on this government source, and that midnight between Thursday and Friday is correct: http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252 http://felesteen.ps/details/news/100581/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%A... Best regards, Steffen Thorsen - timeanddate.com