Time in North Dakota

A majority of North Dakota counties are located in the Central Time Zone, with 8 counties in the southwest, west of the Missouri River, following Mountain Time.

[4][5] The IANA time zone database entry is named for the county seat and largest city Center.

Prior to this, the western part of the county had used Mountain Time.

[4] The database entry is named for New Salem, as the county seat Mandan was already using Central Time.

[2] The database entry is named for the county's largest city, Beulah.