Phút cuối cùng của ngày 30/6/2012 có 61 giây
Giới khoa học quốc tế quy ước cộng thêm 1 giây vào thời điểm cuối cùng của tháng 6 để thời gian nguyên tử quốc tế phù hợp với thời gian thiên văn.
4buu4bqz4bu44bu0NGM6a2tT4buy4buJTOG6tWxjN+G7slbhu4jhurNubOG7tDRt4buB4bq14bu0NG/EkeG6t+G7tDTDsjrhu7TEkeG6tyzhu5vhu7Qj4bu2LyUvQOG7tuG7uEDhu7Q0w6nhu7Ql4bu44bu04bq34bq1XeG7m+G7ri/hurPhu7hW4buu4buJ4bu0NGM6a2tT4buy4buJ4bqyNzo14buyVuG6tuG6tWjhurXhu7Ri4bqzZTrhu7ThurPhurs04bu0xKlt4buBNOG7tGzhuqHhu7TEqW3hu5vhu7Thu49oNOG7tDThu4PEkeG6t+G7tGzhurPDoGThu7Thu7jhu7ThurfhurVd4bub4bu04buVLGXhu7Rs4bqzaeG6teG7tDbhurXEg2Thu7Q0beG7geG6teG7tDRvxJHhurfhu7Q0w7I64bu0bOG6szvEkeG6t+G7tCXhu7Q2xIPhu7Rs4bqzaeG6teG7tOG6t+G6tTrEkeG7tMSR4bq3beG7m8OgxJHhu7Rs4buT4bu0xKlt4buBNOG7tGzhuqHhu7Thu4nhurNv4bu04bqzw63hu4nhu7Thu5Vo4bq14bu0bOG6s2nhurXhu7ThurfhurU6xJHhu7Rs4bqz4bq1w6DEkeG7tOG7lSnEkeG7qOG7ri/hu4lW4buu4buJ4bu0NGM6a2tT4buy4buJeGU14bub4buyVkzhurM3ZeG7tDbDqcav4bu04buJ4bqzbmzhu7Q0beG7geG6teG7tDRvxJHhurfhu7Q0w7I64bu0xJHhurcs4bub4bu0I+G7ti8lL0Dhu7bhu7hA4bu0NMOp4bu0JeG7uOG7tOG6t+G6tV3hu5vhu6jhu64v4buJVuG7ruG7ieG7tDRjOmtrU+G7suG7iXhlNeG7m+G7slbEkOG6syzhu7Ri4bqzZTrhu7ThurPhurs04bu0xJBlN2Phu7TDveG6tWQ6ajTEqcav4bu04bq24bq1O2Thu7Q24buBNOG7tOG7iOG6s+G6ucSR4bq34bu0TOG6s8Oi4bu0xJHhurfhurPhurXDo2Thu7ThurPDo+G7tGzhurPhu4HEkeG6t+G7tGzhurM6ZOG7tGLhurMhZeG7tGLhurPhur/EkeG6t+G7tOG6t+G6tTrEkeG7tC3hu7Rs4bqzaeG6teG7tOG6t+G6tTrEkeG7tGwu4bq14bu04buIOmrhurVr4bu04buw4buI4bqzO+G7ieG7rMav4bu04bq34bq1IeG6teG7tGzhurPDojThurPhu6bhu7ThurLhurXDo8SR4bu0xJE64bub4bu0bOG6s2nhurXhu7ThurfhurU6xJHhu7Q24buPw6004bu0xqE7NOG7tGMw4buJxq/hu7Q24bqnxJHhurPhu7TEkeG6t+G6s+G6qTrhu7Thu5Us4bu0NmXhu7Rj4buPacSR4bq34bu0xJHhurNp4bu04buVLGXhu7Q0OzThu7Q24buHxJHhurfhu7ThurPhu4fhu7TEkeG6t23hu5vDoMSR4bu0bOG7k+G7tOG7lTDEkeG7tOG6syzEkeG6s+G7tGThu4Ns4bu0NDs04bqz4bu04buV4bq/4bu0NG/EkeG6t+G7tOG7hcSR4bu0NuG6p8SR4bqz4bu0a2XEkeG6t+G7tGtlxJHhurfhu7Thu5Vo4bq14bu0bOG6s2nhurXhu7ThurfhurU6xJHhu7Rs4bqz4bq1w6DEkeG7tOG7lSnEkeG7qOG7tOG7s+G6teG6o23hu7Q2w6nhu7Q04bqzZeG7tOG7ieG6szjhu4nhu7Q04bqzbsSR4bq34bu0bDrhu7Q04bqzPDThu7Q04bqzPMSR4bu0aj7EkeG6t+G7tGThurvhurXhu7TEkeG6t+G7j2nhurXhu7RsasOgxJHhu7RsajvhurXhu7Q2Imzhu7Q0w6nhu7Q04bqzbcSR4bq34bu0bOG6szrEkeG6t+G7tGzhurNp4bq14bu04bq34bq1OsSR4buo4buuL+G7iVbhu67hu4nhu7Q0Yzpra1Phu7Lhu4l4ZTXhu5vhu7JWTOG6s2nhurXhu7ThurfhurU6xJHhu7TigJzEkOG6t23hu5vDoMSR4bu0bOG7k+G7tMSpbeG7gTThu7Rs4bqh4bu04buwTHHhurThu6zigJ3hu7Q24buPw6004bu0xqE3ZOG7tGMs4bu0NOG6s20xxJHhu7Rs4bqzaeG6teG7tOG6t+G6tTrEkeG7tDTDqeG7tDbhu4Phu7Q04bqzw6LEkeG6s+G7tMahOzThu7Q04buRNOG7tDQ6ZeG7tDVl4bu04buUKcSR4bu04buJ4bqz4bq5xJHhurfhu7TEqG3hu4E04bu0bOG6oeG7tOG7leG6o+G7tGxq4bq7xJHhurfhu7Rj4buPw63EkeG6t+G7tOG7lSzhu7Q2ZeG7tGPhu49pxJHhurfhu7ThurfhurPhurXhu7TEkeG6szDEkeG7tOG7lSxl4bu0xJEpZOG7tOG7uD8lKuG7qOG7tEzhurM3ZeG7tDbDqcav4bu0NDs04bu0xJHhurMs4bu0YuG6s2U64bu04bqz4bq7NOG7tMahOzThu7Q24bqnxJHhurPhu7Thu7jhu7ThurfhurVd4bub4bu0bOG7j2fEkeG6t+G7tDbhu49nxJHhurfhu7Thu5Vo4bq14bu0bOG6s2nhurXhu7Rj4buPw63EkeG6t+G7tD/hu6jhu7g/QOG7qCUj4bu44buoKirhu7bhu7RjIMSR4bu0NTpl4bu0NuG7g8SR4bq34bu0M8O1NOG7tMahLuG7tDbhurXDo8SR4bu0bMO04bu04buJ4bqzO2zhu7RqOuG7tGzDtOG7tMSR4bq3beG7m8OgxJHhu7Rs4buT4bu0eTdr4bq1bWThu7Thu7gjI8av4bu0YuG6s+G6teG7tMSRw6nhu7Rs4bqzOuG7m+G7tDbhu4XhurXhu7Rsai7EkeG6t+G7tGzhurM74bq14bu04bq34bq14buZOuG7tEDhu7Rkw7U04bu0xJEpxJHhurfhu7Rj4buPw63EkeG6t+G7tDRn4bu0MyHEkeG7qOG7ri/hu4lW4buu4buJ4bu0NGM6a2tT4buy4buJeGU14bub4buyVuG6vsSR4bq34bu0w73hurVkOmo0xKnhu7Q04bqzZeG7tGo+xJHhurfhu7RsauG7j2g04bu0xJEpZOG7tOG7uD8qQMav4bu04buV4bq1w6M04bu0YuG6tcSDZOG7tGxqOuG7tGzhurNp4bq14bu04bq34bq1OsSR4bu04buJ4bqzIeG6teG7tMSR4bqzaeG7tOG7lSxl4bu0bOG6s+G6tcOgxJHhu7Thu5UpxJHhu7ThurPhurs0xq/hu7Rs4bqzN2Xhu7Q2w6nGr+G7tMSR4bq34buPaeG6teG7tGw64bu04buJ4bqzIeG6teG7tMSpbTrEkeG7tGs7bOG7tOG7leG6p+G7tGxqw6Lhu7Rk4buDbOG7tMSR4bq34bq/4bq14bu0azplxq/hu7REe2zhu7RsamnhurXhu7ThurM64bub4bu0bOG6s+G6tcOgxJHhu7Rs4bqzxIPhu7TEkSxl4bu0NsOp4buo4bu04bqy4bq1w6PEkeG7tMSROuG7m8av4bu0NDs04bu0xJHhurMs4bu0YuG6s2U64bu04bqz4bq7NOG7tDQpxJHhu7Q0w7Xhu7Thu5UsZeG7tDThurPhuq3hu7Rr4buB4bu0NMOyOuG7tDbhu4fEkeG6t+G7tOG6s+G7h+G7tMSR4bq3beG7m8OgxJHhu7Rs4buT4buo4buuL+G7iVbhu67hu4nhu7Q0Yzpra1Phu7Lhu4l4ZTXhu5vhu7JW4bqy4bq1w6PEkeG7tDTDqeG7tOG6s2fEkeG7tCM94bu24bu0NuG7h8SR4bq34bu04bqz4buH4bu0xJHhurdt4bubw6DEkeG7tGzhu5Phu7Q24buPw6004bu0Nnts4bu0bC7hurXhu7Ri4bqzZSHEkeG6t+G7tCThu7bhu7Thu4nhurPhurnEkeG6t+G7tGzhurPDouG7tMSR4bq34bqz4bq1w6Nk4bu0bGrDoMSR4bu0bOG6s+G6oeG7tOG6t+G6tWjhurXhu6jhu7Thu4jhurMgxJHhu7Q04bqzw6LEkeG6s+G7tDTDsjrhu7Q24buHxJHhurfhu7ThurPhu4fhu7TEkeG6t23hu5vDoMSR4bu0bOG7k+G7tGMs4bu0ZOG7g2zhu7RkO+G7m+G7tDThu4PEkeG6t+G7tOG6s+G7j8OsxJHhurfhu7Thu5XhurXhu7Rrw6nEkeG6t+G7tOG7lWjhurXhu7Q24buD4bu0NOG6s8OixJHhurPhu7TGoTs04bu0NMOp4bu04bq34bq1O+G7tGxq4bqn4bu0YuG6s2UhxJHhurfhu7Thu7jhu7Yt4bu4Pcav4bu0bMO1NOG7tDThurPDoMSR4bqz4bu0Y8OjNOG6s+G7tDThurPhuq3hu7Ri4bqzZSHEkeG6t+G7tOG7uOG7tOG6t+G6tV3hu5vhu7RrOm3hu7Qj4bu0bGrhurXDo23hu7TEkSlk4buo4buuL+G7iVZM4bqzN2Xhu7RM4bqzOsSR4bqz4bu0xJHhurXDoMSR4buuL+G7iVY=