The vocabulary of the national calendar as a representative of the spiritual and material culture of the ethnos is related to modeling the linguistic picture of the world, because it illustrates the connection between the formation and development of the lexical system of the language and traditional culture, reflecting the worldview and worldview of the speakers. The analysis of the state of study of ononymous (geortonyms, chrononyms) and appellative calendar-ceremonial vocabulary and phraseology in dialects illustrates the unevenness of its study, the superiority of linguistic works on the nomination of individual calendar holidays or their parts in dialects, the lack of materials from a number of dialect areas, and therefore the need to fill gaps in the dialect map. The choice of the study of this thematic group of vocabulary is motivated by the need to preserve those language units that are on the periphery of the dictionary of dialects due to the rapid leveling of calendar rituals. The result of further research will be the most comprehensive presentation of the calendar-ritual nomination ‒ holidays, dedications, rituals, participants, attributes, etc. ‒ in the consolidated dictionary of the language, in textography and linguogeography.