https://www.vedomosti.ru/technology/news/2012/01/21/lishnyuyu_sekundu_dobavyat_ko_vsemirnomu_vremeni_30_iyunya?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=lishnyuyu_sekundu_dobavyat_ko_vsemirnomu_vremeni_30_iyunya