The year 5800 ת״ת
5800 in the Jewish calendar is written ה׳ת״ת — the ה is the 5,000 years, and the letters after it are the 800 since. Written on its own, as it is on nearly every page that carries a date, the year is ת״ת, and those letters add to 800.
The letters, and what each is worth
400 + 400 = 800, computed by the same engine that computes every value on this site, over the same consonantal letters.
Why the five thousand is missing
The full form is ה׳ת״ת: the first letter carries the 5,000. In ordinary use it is left off and the year is written ת״ת followed by לפ״ק — lifrat katan, “by the minor reckoning”, which is the writer saying out loud that the thousands have been dropped. It is a habit of writing and not a claim about the number: the year is 5,800, and 800 is what its letters spell.
What the letters spell
The four letters in this order are also a word of the twenty-four books, standing 13 times. See where →
800 in the Tanakh
115 words, 833 phrases and 3 whole verses carry the value 800 under the standard method — 948 matches in all.
The letters of a Jewish year are a numeral, and this page treats them as one. Every value here is the engine’s, computed on the consonantal letters at the moment the page is served, and every count is read from the Westminster Leningrad Codex. Nothing on this page is a prediction.