- Big Bang 1st 00:00:00
Source check: June 2026
Cosmic Calendar
Most of the year passes before dinosaurs. Humans arrive at the very end.
This calendar is a scale model for learning. The placements are approximate, not exact calendar certainty.
Scale ruler
- 1 Calendar Day
- 37.8 million years
- 1 Hour
- 1.6 million years
- 1 Minute
- 26,000 years
- 1 Second
- 438 years
Month selector
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- Earth forms 3rd 23:28:42
- Life signals 17th 04:52:10
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Image credit: NASA/JPL-Caltech. Background source: Age-Defying Star.