WhenHub for Home Assistant (Marketplace integration)

Installs: 52 sharing analytics
GitHub stars: 10
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: v3.0.0, August 29, 2026
Category: Productivity and information, Calendars and to-dos
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: whenhub
Source: github.com/moerk-o/WhenHub
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

About

WhenHub is a Home Assistant integration that tracks trips, one-time dates, yearly events and holidays with countdowns. It supports four event types: multi-day trips, one-time milestones, yearly anniversaries, and special events such as Christmas, Easter, daylight saving changes or custom patterns. Each event gets sensors for days until or since a date, binary sensors such as trip active today, and an image entity, and events also appear in a combined calendar. A date can come from a fixed value or from another date or timestamp entity, and an event can carry an image, a link and a Markdown memo. Events can notify through Repairs when they expire, and actions let automations create, update or delete events. It works locally and is set up in the UI.

Automatic summary of the README and code of moerk-o/WhenHub. Something wrong, or are you the maintainer and want your own text here? Get in touch

Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Sensors
Calendars

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Choose WhenHub event type

Event type

Set up trip

Start dateThe date when the trip begins
Use an HA entity as start date sourceUse a date or timestamp entity instead of the field above
End dateThe date when the trip ends
Use an HA entity as end date sourceUse a date or timestamp entity instead of the field above
Upload image (optional)Drag & drop or click to select a JPEG, PNG, WebP or GIF file
Or enter image path (optional)Path to an image, e.g. /local/images/trip.jpg — upload above takes priority
URL (optional)Link to a website, booking page or any related URL
Memo (optional)Free-text notes about this event — supports Markdown
Notify when expiredCreate a notification in HA Repairs when this event expires

Select start date entity

Start date entityDate or timestamp entity

Select end date entity

End date entityDate or timestamp entity

Set up milestone

Target dateThe date of the important event
Use an HA entity as date sourceUse a date or timestamp entity instead of the field above
Upload image (optional)Drag & drop or click to select a JPEG, PNG, WebP or GIF file
Or enter image path (optional)Path to an image, e.g. /local/images/milestone.jpg — upload above takes priority
URL (optional)Link to a website or any related URL
Memo (optional)Free-text notes about this event — supports Markdown
Notify when expiredCreate a notification in HA Repairs when this event expires

Select date entity

Date entityDate or timestamp entity

Also asked when at the select date entity step.

Set up anniversary

Original dateThe original date (will repeat yearly)
Use an HA entity as date sourceUse a date or timestamp entity instead of the field above
Upload image (optional)Drag & drop or click to select a JPEG, PNG, WebP or GIF file
Or enter image path (optional)Path to an image, e.g. /local/images/anniversary.jpg — upload above takes priority
URL (optional)Link to a website or any related URL
Memo (optional)Free-text notes about this event — supports Markdown

After setup

Use an HA entity as start date sourceUse a date or timestamp entity instead of the date field
Use an HA entity as end date sourceUse a date or timestamp entity instead of the date field
Upload new image (optional)Drag & drop or click to select a JPEG, PNG, WebP or GIF file
Or enter image path (optional)Path to an image, e.g. /local/images/trip.jpg — upload above takes priority
Remove current image
URL (optional)Link to a website, booking page or any related URL
Memo (optional)Free-text notes about this event — supports Markdown
Notify when expiredCreate a notification in HA Repairs when this event expires
Start date entityEntity with device_class 'date' or 'timestamp'
End date entityEntity with device_class 'date' or 'timestamp'
Use an HA entity as date sourceUse a date or timestamp entity instead of the date field
Upload new image (optional)Drag & drop or click to select a JPEG, PNG, WebP or GIF file
Or enter image path (optional)Path to an image, e.g. /local/images/milestone.jpg — upload above takes priority
Remove current image
URL (optional)Link to a website or any related URL
Memo (optional)Free-text notes about this event — supports Markdown
Notify when expiredCreate a notification in HA Repairs when this event expires
Date entityEntity with device_class 'date' or 'timestamp'
Use an HA entity as date sourceUse a date or timestamp entity instead of the date field
Upload new image (optional)Drag & drop or click to select a JPEG, PNG, WebP or GIF file
Or enter image path (optional)Path to an image, e.g. /local/images/anniversary.jpg — upload above takes priority
Remove current image
URL (optional)Link to a website or any related URL
Memo (optional)Free-text notes about this event — supports Markdown
Date entityEntity with device_class 'date' or 'timestamp'
Upload new image (optional)Drag & drop or click to select a JPEG, PNG, WebP or GIF file
Or enter image path (optional)Path to an image, e.g. /local/images/special.jpg — upload above takes priority
Remove current image
URL (optional)Link to a website or any related URL
Memo (optional)Free-text notes about this event — supports Markdown

Texts from the code of moerk-o/WhenHub.

Entities

Binary sensorsTrip starts today, Trip active today, Trip ends today, Is today, Daylight Saving Time active
ImagesEvent image
SensorsDays until start, Days until end, Event date, Trip days remaining, Trip percent remaining, Days until next, Days since last, Occurrences count, Occurrence count, Next date, Last date, URL, and 1 more

Actions

Create eventCreates a WhenHub event. Custom pattern events can only be created in the user interface.Fields: Event type, Name, Rename on conflict, Start date, End date, Date, Start date entity, End date entity, Date entity, Holiday
Update eventChanges fields of an existing WhenHub event and reloads it. Only the fields you pass are changed.Fields: Event, Name, Replace entity source, Start date, End date, Date, Start date entity, End date entity, Date entity, Holiday
Delete eventRemoves a WhenHub event including its device and all its entities. There is no confirmation and no undo.Fields: Event

From the README

A Home Assistant integration for tracking various events and important dates. WhenHub provides countdown sensors, status information, and visual representations for your events.

From the README of moerk-o/WhenHub, MIT License. Shortened.