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Wakusei Planets惑星

The Sun, the planets and their moons as a clean line drawing, a shaded realistic drawing or a painted surface map, with real sizes, tilt and rotation, and the moons where they are at any date and time.

Wakusei is the Japanese word 惑星 for a planet. About the name

Contents

Reference · Julian dates (and the julian package's functions), calendars, time scales, sidereal time and Mars time

dayOfWeekfunction

The day of the week of a moment in UTC: 0 Sunday to 6 Saturday.

Import it

import { dayOfWeek } from "@johnmorrisdotca/wakusei-planets/time";

Definition

function dayOfWeek(when: When): number

Parameters

NameTypeDescription
whenWhen

A Date or milliseconds since 1970 (UTC).

Returns

number

0 to 6.

Examples

import { dayOfWeek } from "@johnmorrisdotca/wakusei-planets/time";

console.log(dayOfWeek(Date.UTC(1954, 5, 30)));
3

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/wakusei-planets 0.24.0.