Time unit conversion between mundus and Earth

Time

Second: a secundo on Mundus is equal to a second on Earth

Minute: a Primo on Mundus equals 60 secundi and is equal to a minute on Earth

Hour: a Rota on Mundus equals 60 Primi and is equal to an hour on Earth

Day: a Die on Mundus is equal to 30 Rote and is 6 hours longer than a day on Earth, like on Earth this unit of time is derived from the perceived movement of the star that Mundus orbits, Mihir.

Week: a Decimana on Mundus is 10 Dia and is 132 hours or 5.5 days longer than a week on Earth, a Decimana is the precise time needed for Romul, the smallest of the two moons around Mundus, to complete a cycle.

Month: a Triginta on Mundus is 3 Decimane and is 180 hours or 7.5 days longer than a standard 30-day Month on Earth, on Mundus each Triginta is equal in length to each other, unlike Earth months. A Tiginta is the precise time needed for Didon, the largest of the two moons around Mundus, to complete a cycle.

Year: an Anno on Mundus is 10 Triginte and is 10 days longer than a standard 365-day year on Earth, on Mundus there is no need for Leep years, like on Earth this time is derived by the time it takes Mundus to orbit Mihir, Mundus is not tilted in his orbital axis so seasons are not a natural phenomenon but a phenomenon derived by the action of The Winter King in the Feywild.

Notes: Other units of measurement of time such as decades and eons do exist but are not needed to comprehend the workings of the world. 

On mundus instruments to count time have existed since antiquity such as the Sundial, but more precise instruments capable of counting seconds have existed since 299540 SE circa.