Below is a list of Mosby MT zip codes. For your research we have also included Mosby Area Code, Time Zone, UTC and the local Garfield County FIPS Code. Each Mosby Montana zip code has a center Longitude / Latitude point (the Mosby center is -107.88400268555 / 46.993900299072). For your convenience we have also indicated if that zip code in Mosby observes Daylight Savings time.