28 Maachị bu ubochi nke 28th (nke iri abụọ na asatọ) na onwa ana kpo Maachị. Na Gregorian calender, 28 Maachị bu ubochi nke 87th (88th na afo nke ana-kpo leap year) na afo. Anyi nwere agugu ubochi 278 du mgbe afo na agwu.