U+19F1 "᧱" Khmer Symbol Muoy Roc Unicode Character

U+19F1 "᧱" Khmer Symbol Muoy Roc is a numeral symbol used in the Khmer lunar calendar to represent the number "one" for the specific purpose of marking the first day of a waning moon period. This glyph is part of the Khmer Symbols block in Unicode, which encodes traditional astronomical and calendrical notations from Cambodia. Unlike standard Khmer digits, this symbol functions within a specialized system for recording lunar dates, where "Muoy Roc" translates to "one of the waning phase." Its inclusion in Unicode helps preserve and digitally represent this historic calendrical tradition.