India, Jan. 4 -- Russia announced last year that the four Ukraine regions it annexed in 2022 would have to switch from Ukraine time to Moscow time, one hour ahead. Russia's full-scale invasion of Ukraine is now in its fourth year. China has a contentious relationship with the clock. Everyone is expected to follow a Beijing Time despite vast geographical differences. So, in the Xinjiang region, the summer sun sets at midnight. Communities that break from the official time have been prosecuted. Kiribati, a Pacific nation, used to have a unique problem. Of its 33 islands, nine were on the other side of the International Date Line. That meant some islands had a 23-hour time difference with their neighbours. On January 1, 1995, the country simpl...