Function now 

pub fn now() -> String

A timestamp in the format every stored row and every API response uses: JavaScript’s Date.toISOString() — millisecond precision, Z suffix, e.g. 2026-09-03T21:49:55.191Z.

Rows written by the Node server are already in the database in this shape, and clients and the admin page display them, so the format is part of the compatibility surface rather than a style choice.