Holocaust Remembrance Day starts on 27 Nisan in the evening
May 1st/2nd 2019 = 27 nisam 5779 (Yom HaSzoah)
The main national celebrations are held in Yad Vashem in the evening. Usually the President of the State of Israel is present, as well as the Prime Minister, political offcials and survivors together with their children and their families.
On the next day the whole Israel stops for two minutes to the sound of an alarm. Everyone in Israel stands in silent in order to commemorate the death of 6 million Jews in 1939-1945. The whole traffic stops, every work ceases and everyone gives honor to the murdered Jews.