When displaying date-ranges in UI, they are often too long, repetitive, and hard to read. little-date solves this problem by making date ranges short, readable, and easy to understand.
Consider this example:
// Typical long format
console.log(`${from.toLocaleString()} - ${to.toLocaleString()}`);
// Output: "1/1/2024, 00:00:00 AM - 1/12/2024, 23:59:59 PM"
// With little-date
console.log(formatDateRange(from, to));
// Output: "Jan 1 - 12"little-date is based on date-fns. It supports localization and can be used in both Node.js and the browser.
Examples dates ✨
Jan 1 - 12Jan 3 - Apr 20January 2023Q1 2023
Wasn't that easy to read? You can find a full list of formatting examples here.
import { formatDateRange } from "little-date";
const from = new Date("2023-01-01T00:00:00.000Z");
const to = new Date("2023-01-12T23:59:59.999Z");
formatDateRange(from, to); // Outputs: "Jan 1 - 12"pnpm i little-datenpm i little-date| Description | Output |
|---|---|
| Multiple days, same month | Jan 1 - 12 |
| Multiple days, different months | Jan 3 - Apr 20 |
| Full day | Sun, Jan 1 |
| Range spanning different years | Jan 1 '22 - Jan 20 '23 |
| Multiple days, same month, past year | Jan 1 - 12, 2022 |
| Full day, past year | Sat, Jan 1, 2022 |
| Special cases | |
| Full year | 2023 |
| Quarter range | Q1 2023 |
| Full month | January 2023 |
| Full months | Jan - Feb 2023 |
| With time | |
| Today, different hours | 12am - 2:30pm |
| Same day, different hours | Jan 1, 12:11am - 2:30pm |
| Same day, different hours, 24-hour format | Jan 1, 0:11 - 14:30 |
| Hour difference within a day | Jan 1, 12pm - 12:59pm |
| Different days with time included | Jan 1, 12:11am - Jan 2, 2:30pm |
| Different years with time | Jan 1 '22, 12:11am - Jan 2 '23, 2:30pm |
| Different years, no time | Jan 1 '22 - Jan 2 '23 |
Most of the formatting behavior is opinionated and can't be changed. However, there are some options that can be used to customize the output.
import { formatDateRange } from "little-date";
// ...
formatDateRange(from, to, {
locale: "de-AT", // Overwrite the default locale
includeTime: false, // Prevent time from being displayed
today: new Date(), // Overwrite the default "today" date, useful for testing
separator: "-", // Overwrite the default separator. E.g. from "Jan 1 - 12" to "Jan 1 to 12"
});To keep things simple, there is minimal customization offered by little-date.
For more extensive customization beyond the provided options, it's recommended to copy the implementation from src/format-date-range.ts into your own repository. This allows you to modify the formatting logic to precisely fit your needs.
We welcome contributions! If you'd like to improve little-date or have any feedback, feel free to open an issue or submit a pull request.
MIT