The International Baccalaureate (IB) body has vowed to evaluate its time zone arrangements for tests. The decision comes after questions were leaked online before some students took the exam ...

led to the establishment of the first international time zones at a conference in Washington D.C. in 1884. The zones were ...

The International Baccalaureate (IB ... announced the new measures following its earlier investigation into “time zone cheating”, in which questions and answers of this year’s exams were ...

Image caption, Maps of the world showing different time zones. The International Date Line is the vertical wriggly yellow line on the right. The International Date Line (IDL) is an imaginary line ...

The modern world of international travel comes with a peculiar challenge that can derail even the most seasoned travellers: jet lag. As our bodies struggle to align with new time zones ...