TIL the Passemant astronomical clock in Versailles has shown the correct date, time, moon phase, planetary alignment, etc (accounting for leap years ) from 1750 and can display through 9999. en.chateauversailles.fr Submitted by kitkatbloo t3_z1r4ps on November 22, 2022 at 11:23 AM in todayilearned 34 comments 2,169
jrhoffa t1_ixe77j4 wrote on November 22, 2022 at 7:44 PM Didn't we alter the leap year cycle at one point? Permalink 2 ExtonGuy t1_ixfdnhf wrote on November 23, 2022 at 12:47 AM France adopted the Gregorian (modern ) calendar in 1782. Since then,1800 and 1900 have not been leap years, but I presume this clock was built to the old rules where they would be leap years. Permalink Parent 3 snakeling t1_iy9gcc4 wrote on November 29, 2022 at 7:15 PM 1582, not 1782. Permalink Parent 2
ExtonGuy t1_ixfdnhf wrote on November 23, 2022 at 12:47 AM France adopted the Gregorian (modern ) calendar in 1782. Since then,1800 and 1900 have not been leap years, but I presume this clock was built to the old rules where they would be leap years. Permalink Parent 3 snakeling t1_iy9gcc4 wrote on November 29, 2022 at 7:15 PM 1582, not 1782. Permalink Parent 2
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