Reference · The realistic Earth's pure parts
julianDayfunction
Julian day number of a moment in milliseconds since the Unix epoch.
Import it
import { julianDay } from "@johnmorrisdotca/chikyu-earth/realistic";
Definition
function julianDay(ms: number): number
Parameters
| Name | Type | Description |
|---|---|---|
ms | number | Milliseconds since 1970-01-01T00:00Z. |
Returns
number
The Julian day number, with its fraction.
Examples
import { julianDay } from "@johnmorrisdotca/chikyu-earth/realistic";
console.log(julianDay(Date.UTC(2000, 0, 1, 12)));2451545What it prints (run when this page was built)