Ukraine will observe its own truce with Russia starting May 6, Ukrainian President Volodymyr Zelensky said Monday, after Moscow declared a unilateral truce with Ukraine over the May 9 Russian holiday. "As of today, there has been no official appeal to Ukraine regarding the modality of a cessation of hostilities that is being claimed on Russian social media," Zelensky said in a post on X. "In this regard, we are announcing a ceasefire regime starting at 00:00 (2100 GMT) on the night of May 5-6. In the time left until that moment, it is realistic to ensure that silence takes effect," he added.