Winter solstice one must be able to observe a change in azimuth or elevation less than or equal to about 1/60 of the angular diameter of the sun. Observing that it occurred within a two-day period is easier, requiring an observation precision of only about 1/16 of the angular diameter of the sun. Thus, many observations are of the day of the solstice rather than the instant. This is often done by observing the sunrise and sunset or using an astronomically aligned instrument that allows a ray of light to be cast on a certain point around that time. Length of day
Slovene months Slovene months Slovene months have standard modern names derived from Latin names, as in most European languages. There are also archaic Slovene month names, which exist in both a standardized set as well as many variations. The standard modern Slovene month names are "januar", "februar", "marec", "april", "maj", "junij", "julij", "avgust", "september", "oktober", "november", and "december". When writing dates, they appear after the day and are often represented by Arabic numerals, and sometimes with Roman numerals (e.g., "19. 5." or "19. V." 'May 19th'). Older variants include "januvarij" 'January', "februvarij" 'February', and "marcij" 'March'. Many of the names in the