The first constitution since independence was adopted during an overnight parliamentary session after almost 24 hours of debate of June 27–28, 1996, unofficially known as "the constitutional night of 1996." The Law No. 254/96-BP ratifying the constitution, nullifying previous constitutions and the Agreement was ceremonially signed and promulgated in mid-July 1996. However, according to a ruling of the Constitutional Court of Ukraine, the constitution took force at the moment when the results of the parliamentary vote were announced on June 28, 1996 at approx. 9 a.m. Kyiv Time. Ukraine was the last of the post-Soviet states to adopt its own constitution. On Constitution Day 2018, President Petro Poroshenko remarked that the 1710 Constitution of Pylyp Orlyk is the predecessor of Ukraine's current constitution.