Lovelace Horizon Card

A Home Assistant Dashboard Card available through the Home Assistant Community Store and inspired by Google Weather (pre 2024 version).

Lovelace Horizon Card is a fork of the original home-assistant-sun-card project by @AitorDB to continue the great work and distribute the responsibility of supporting and advancing the project among a team of people.

Consider joining us! Click here to fork

Introduction

The Horizon Card tracks the position of the Sun and the Moon over the horizon and shows the times of various Sun and Moon events, as well as their current azimuth and elevation, in a visually appealing and easy-to-read format.

Light theme default look	Dark theme default look

Light theme full look	Dark theme full look

How it works

The card will show the Sun and the Moon as they travel across the horizon from East to West. Both celestial bodies will be shown when above or below the horizon.

The current view shows a period of 24 hours centered around the local solar noon. This means that the Sun will continue to travel to the far end of the graph until it reaches solar midnight, which may be some time before or after midnight in your local time zone. Once solar midnight is reached, the view will reset and start showing the data for the next day.

In the Northern hemisphere, East is on the left, South is in the middle (when the Sun is in its highest position), and West is on the right. You are facing South and the Sun travels left-to-right.

In the Southern hemisphere, West is on the left, North is in the middle (when the Sun is in its highest position), and East is on the right. You are facing North and the Sun travels right-to-left. You can disable the direction flip by setting southern_flip: false. This will also affect the sunset/sunrise, dawn/dusk, and moonrise/moonset times shown on the card.

The elevation of the Sun follows a predetermined curve that approximates the actual elevation, while the elevation of the Moon affects its vertical position in the graph. The scale for the Moon elevation is logarithmic, so lower elevations will appear higher (above horizon) or lower (below horizon).

If showing the moon phase is enabled, the icon will be rotated to match the approximate view for your latitude. You can disable this by setting moon_phase_rotation: 0 or set a different angle to match your location or preferences.

Installation

Please ensure you have HACS, the Sun integration and the Moon Integration (for the moon info) enabled in your Home Assistant setup.

If you have My Home Assistant configured, simply click here:

Otherwise follow these steps:

1. Make sure the HACS component is installed and working.
2. Search for "Horizon Card" or lovelace-horizon-card in HACS and install the latest version.

Manual Installation

Installation via HACS is recommended, but a manual setup is supported.

Show detailed instructions

1. Download the latest lovelace-horizon-card.js file.

2. If necessary, create a www folder in your configuration folder (where configuration.yaml is found).

3. Copy the downloaded file into your www folder.

4. Add the resources, depending on whether you manage your Lovelace resources via the UI or YAML:

   1. UI: Go to and click Add resource (or navigate to Settings -> Dashboards -> Resources -> Add Resource) and enter:

      URL: /local/lovelace-horizon-card.js

      Type: JavaScript Module

   2. YAML: Add the configuration to your ui-lovelace.yaml:

      resources:
        - url: /local/lovelace-horizon-card.js
          type: module

5. Restart Home Assistant.

Setup

Using UI

1. Access your dashboard, enter edit mode, and click on Add card. You should be able to find Custom: Horizon Card in the list.
2. In the UI editor, customize the card by modifying its configuration as detailed in the Config section below.

Note: If Custom: Horizon Card doesn't appear, clear the cache and reload the page.

Using YAML

1. Add a new card with type: custom:horizon-card to your cards list and include any additional configuration from the Config section below.

Note: If you encounter an error like Custom element doesn't exist, clear the cache and reload the page.

Configuration

General options

Name	Accepted values	Description	Default
title	string	Card title	Doesn't display a title by default
moon	boolean	Shows the Moon together with the Sun	true
refresh_period	number	Refresh period between updates, in seconds	60
fields	See below	Fine-tuned control over visible fields
southern_flip	boolean	Draws the graph and accompanying times in the opposite direction	true in the Southern hemisphere, false in the Northern one
moon_phase_rotation	number	Angle in degrees for rotating the moon phase icon	Determined from the latitude

Example: here

Advanced options

In general, you should not need to set any of these as they override Home Assistant's settings or set debug options.

Name	Accepted values	Description	Default
language	See below	Changes card language	Home Assistant profile language or English if not supported
time_format	language, 12, 24	Set to 12 or 24 to force 12/24 hour clock, language follow the language representation	language
number_format	language, comma_decimal, decimal_comma	Set to comma_decimal or decimal_comma to force 123.45/123,45 number format, language follow the language representation	language
latitude	number	Latitude used for calculations	Home Assistant latitude
longitude	number	Longitude used for calculations	Home Assistant longitude
elevation	number	Elevation (above sea) used for calculations	Home Assistant elevation
time_zone	string	Time zone (IANA) used for calculations and time presentation	Home Assistant time zone
no_card	boolean	Disable card background	false
now	Date	Overrides the current moment shown on the card	Current time
debug_level	number	Sets debug level, 0 (no debug), 1 and 2	0

Example: here

Visibility Fields

Supported settings inside the fields setting:

Name	Accepted values	Description	Default
sunrise	boolean	Show sunrise time	true
sunset	boolean	Show sunset time	true
dawn	boolean	Show dawn time	true
noon	boolean	Show solar noon time	true
dusk	boolean	Show dusk time	true
azimuth	boolean	Show Sun and Moon azimuth	false
sun_azimuth	boolean	Show Sun azimuth	Value of azimuth
moon_azimuth	boolean	Show Moon azimuth	Value of azimuth
elevation	boolean	Show Sun and Moon elevation	false
sun_elevation	boolean	Show Sun elevation	Value of elevation
moon_elevation	boolean	Show Moon elevation	Value of elevation
moonrise	boolean	Show moonrise time	false
moonset	boolean	Show moonset time	false
moon_phase	boolean	Show the Moon phase	false

Example: here

Languages

Supported options for the language setting:

• bg Bulgarian
• ca Catalan
• cs Czech
• da Danish
• de German
• el Greek
• en English
• es Spanish
• et Estonian
• fi Finnish
• fr French
• gl Galician
• he Hebrew
• hr Croatian
• hu Hungarian
• is Icelandic
• ja Japanese
• ko Korean
• it Italian
• lt Lithuanian
• ms Malay
• nb Norwegian (Bokmål)
• nl Dutch
• nn Norwegian (Nynorsk)
• pl Polish
• pt Portuguese (Portugal)
• pt-BR Portuguese (Brazil)
• ro Romanian
• ru Russian
• sk Slovak
• sl Slovenian
• sv Swedish
• tr Turkish
• uk Ukrainian
• ur Urdu
• zh-Hans Chinese, simplified
• zh-Hant Chinese, traditional

Example: here

Caveats

The Moon phase name (if the field moon_phase is enabled) is obtained via the Moon integration. If the integration is not installed, the card will still show the Moon phase as a human-readable constant followed by (!), e.g., waning_gibbuous (!). Due to the way Home Assistant works, the localized Moon phase name will always be in Home Assistant's language and not in the language set for the card via the language option.

Example config

The following YAML configuration illustrates the use of all options.

type: custom:horizon-card
title: Example Horizon Card
moon: true
refresh_period: 60
fields:
  sunrise: true
  sunset: true
  dawn: true
  noon: true
  dusk: true
  azimuth: true
  sun_azimuth: true
  moon_azimuth: true
  elevation: true
  sun_elevation: true
  moon_elevation: true
  moonrise: true
  moonset: true
  moon_phase: true
southern_flip: false
moon_phase_rotation: -10
language: en
time_format: language
number_format: language
latitude: 42.55
longitude: 23.25
elevation: 1500
time_zone: Europe/Sofia
no_card: false
now: 2023-07-06T00:30:05+0300
debug_level: 0

Development

Prepare the environment

1. Install nvm and run nvm install && nvm use to use the right Node.js version
2. Enable corepack. Run corepack enable
3. Install dependencies, run yarn install

Build the project

Run yarn build