Skip to the content

Chikyu Earth地球

A line-drawn globe of the world's countries that turns at the Earth's own rate, with an optional realistic Earth from space and markers for any place.

Chikyu is the Japanese word 地球 for the Earth. About the name

Contents

Reference · Printable sheets: the globe and a world map to colour, my country, day and night, the seasons

dayNightFactsfunction

The three facts of the day and night sheet for a moment, with the place the Sun is straight overhead then.

Import it

import { dayNightFacts } from "@johnmorrisdotca/chikyu-earth/sheets";

Definition

function dayNightFacts(ms: number, lang: Lang): string[]

Parameters

NameTypeDescription
msnumber

The moment, in milliseconds since the Unix epoch.

langLang

en or ja.

Returns

string[]

Three sentences.

Examples

import { dayNightFacts } from "@johnmorrisdotca/chikyu-earth/sheets";

console.log(dayNightFacts(Date.UTC(2026, 5, 21, 12), "en")[1]);
At 2026-06-21 12:00 UTC the Sun is straight overhead at 23.4° N, 0.5° E.

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/chikyu-earth 0.51.1.