SortStack #3378 — 2035-09-08

By duration · Order from shortest to longest.

1. A proper hand wash, by WHO guidelines 19.8 sec

   The recommended scrub lasts about as long as singing 'Happy Birthday' twice — most people manage barely a third of it.

2. A main-stage TED talk at its maximum allowed length 18 min

   TED's curator calls it 'long enough to be serious, short enough to hold attention' — even Bill Gates and presidents get cut off at the limit.

3. The Isner-Mahut match, the longest in tennis history 11.1 h

   The 2010 Wimbledon first-rounder stretched over three days with a 70-68 final set — the scoreboard wasn't programmed to go that high and broke.

4. One full rotation of Earth on its axis 23.9 h

   A true rotation takes 23 hours 56 minutes — the extra 4 minutes of our day come from Earth also moving along its orbit and needing to catch up to the Sun.

5. The First World War 4.3 years

   The armistice was signed at dawn but set for 11 am — nearly 2,700 men died in those final six hours, the last just one minute before peace.

6. The time since Vesuvius buried Pompeii 1.9K years

   The AD 79 ash preserved loaves of bread still sitting in ovens — one carbonized loaf even bears its baker's stamp.

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