-What is the true age of the earth?

Many Earth clocks indicate recent creation. Measuring the rate at which worldwide processes function provides a "clock" by which the age of the earth may be calculated. Many of these processes yield thousands of years, rather than billions.

Diamonds and Strata Have Too Much Carbon 14
Carbon 14 has been measured within natural diamonds, evidence that the earth is thousands of years old. More...

--Check this out...
This is from the Institute for Creation Research:
True Age of the Earth (http://www.icr.org/age-of-the-earth/)

--About ICR
ICR equips believers with evidence of the Bible's accuracy and authority through scientific research, educational programs, and media presentations, all conducted within a thoroughly biblical framework.