Time Across All 8 Planets (+ Pluto!)
Each planet in our solar system has its own unique relationship with time. Explore how days, years, and seasons work on every world.
⚠️ Note: Pluto is officially classified as a "dwarf planet" since 2006, but we include it here because it's still fascinating!
Quick Time Comparison
How long is a day and year on each planet?
| Planet | Day Length | Year Length | Special Feature |
|---|---|---|---|
| Mercury | 176 days | 88 days | The Speed Demon |
| Venus | 117 days | 225 days | The Backwards Planet |
| Earth | 1 day | 1.0 year | The Goldilocks Planet |
| Mars | 1 day | 1.9 years | The Almost-Twin |
| Jupiter | 10 hours | 11.9 years | The Speed Demon |
| Saturn | 11 hours | 29.5 years | The Patient Planet |
| Uranus | 17 hours | 84.1 years | The Sideways Roller |
| Neptune | 16 hours | 164.9 years | The Generational Planet |
| Pluto | 6 days | 248.1 years | The Dwarf Planet (It's Complicated) |
Mercury
The Speed Demon
The planet where you celebrate two birthdays between sunrises
Venus
The Backwards Planet
The only planet where the sun rises in the west and days are longer than years
Earth
The Goldilocks Planet
The planet with time that's just right - perfectly balanced for life
Mars
The Almost-Twin
Earth's quirky cousin with days that feel normal but seasons that last forever
Jupiter
The Speed Demon
The planet where days fly by in less than 10 hours and you'd live through 36,000+ sunrises in one Earth year
Saturn
The Patient Planet
The ringed giant where seasons last 7 years each and you'd be a toddler at age 30
Uranus
The Sideways Roller
The planet that rolls on its side, where polar regions experience 42 Earth years of daylight, then 42 years of darkness
Neptune
The Generational Planet
The distant world where seasons span multiple human lifetimes and no one lives to see a complete year
Pluto(Dwarf Planet)
The Dwarf Planet (It's Complicated)
Once the 9th planet, demoted in 2006 - but no less fascinating with its heart-shaped glacier and 5 moons!
Ready to Calculate Your Ages?
Now that you've seen how time works on each planet, discover your actual age on every world in our solar system.
🚀 Calculate My Cosmic Ages