How hold is zac eferon?

As of my last knowledge update in September 2021, Zac Efron is 34 years old. He was born on October 18, 1987, in San Luis Obispo, California, United States. However, it's worth noting that this information could be outdated as my knowledge isn't real-time. To obtain the most up-to-date information on Zac Efron's age, you may want to refer to a reliable and recently updated source.