That's the age of our Solar System, so you can expect all the planets in our Solar System to have approximately that age.
It is estimated that the Solar System is 4.6 billion years old including Earth and the other planets.
4.6 billion years ago.
Exoplanets are planets that orbit a star outside of our solar system, while other planets refer to those within our solar system, such as Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Exoplanets are located in other star systems, light-years away from Earth, and have different characteristics compared to the planets within our solar system.
The formation of the Solar System began billions of years ago, when gases and dust began to come together to form the sun, planets and all the other bodies in the solar system.
The solar system is estimated to be approximately 5 billion years old.
Pluto is a lot smaller than other planets in out solar system. This was not noticeable in earlier years because there wasn't the technology to very accurately compare it to other planets. Because of it's small size Pluto was determined a dwarf.
Mars is about 4.6 billion years old, just like the other planets of the solar system.
The solar system's planets (and the Sun) are thought to have been created about four and a half billion years ago.
The earth - and the other seven planets, comets, asteroids and minor planets - are all "charter members". They've been in the solar system since it evolved out of the accretion disc around the proto-sun about 4.5 to 5 billion years ago. Creationists, on the other hand, believe that the solar system and universe have been in existence for around 6,000 - 10,000 years.
Saturn was formed along with all the other planets in the Soar System about 4.5 billion years ago.
In all probability, all the planets are about the same age. They formed around the same time as all of the other planets give or take a few million years.