SortStack #3637 — 2036-05-24

By duration · Order from shortest to longest.

1. A flight from London to New York 8.2 h

   Flying west against the jet stream adds about an hour versus the return leg — eastbound flights have surfed the tailwind to under 5 hours.

2. The Battle of Leipzig, Napoleon's 'Battle of the Nations' 4 days

   With around 600,000 soldiers from over a dozen nations, the 1813 clash was Europe's largest battle until the First World War.

3. Lent, from Ash Wednesday to Holy Saturday 46 days

   It's famously a 40-day fast, but the calendar span is 46 days — Sundays are feast days and traditionally don't count.

4. A tiger's pregnancy 105 days

   Cubs are born blind and helpless at around a kilogram — yet within two years they're apex predators ten times their mother's litter weight.

5. Voyager 1's journey from launch to interstellar space 35 years

   It carries a golden record with greetings in 55 languages and Chuck Berry — and it still phones home daily on a 1970s 8-track-era computer.

6. How long the Hagia Sophia has been standing 1.5K years

   Built in just five years under Justinian, it has since served as cathedral, mosque, museum, and mosque again across nearly 1,500 years.

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