The United Clock Company name appears on a range of American shelf, novelty, and electric clocks from the early-to-mid 20th century, a period when numerous smaller manufacturers competed alongside the major Connecticut firms by producing affordable mass-market timepieces, often sold through department stores, mail-order catalogs, and five-and-dime retailers.
As with many companies from this era, detailed corporate records for United Clock Co. are scarce, and clocks bearing this name are most often identified and dated through case style, movement type, and labeling conventions typical of the period.