Below is a list of Twain Harte CA zip codes. For your research we have also included Twain Harte Area Code, Time Zone, UTC and the local Tuolumne County FIPS Code. Each Twain Harte California zip code has a center Longitude / Latitude point (the Twain Harte center is -120.22399902344 / 38.03630065918). For your convenience we have also indicated if that zip code in Twain Harte observes Daylight Savings time.