Russian Prime Minister Medvedev comes to President Putin and nervously tells him they need to abolish time zones.
"Why"? Putin asks
" I fly to another city, call home and everyone is asleep. I woke you up at 4AM in the morning, but I thought it was only evening. - I call Angela Merkel to congratulate her on her birthday and she tells me she had it yesterday. - I wish the Chinese President a happy New Year, and he says it will be tomorrow."
"Indeed" Putin replies "but that's only minor stuff. Remember when that Polish plane crashed with the president aboard? I called them to express my condolences, but the plane hadn't taken off yet!!"