The rond is a time measurement used by the Vostigye that holds the same position as the month does to Humans.

In an alternate timeline, Neelix stated that his show, Catching Up with Neelix, had been on for 6 months and about 40 Talaxian niziks, the equivalent of about 4 ronds. (VOY - Myriad Universes novel: Places of Exile)