How can I create an anniversary reminder based on a custom start date?

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1

Hi everyone,

I’m exploring the idea of creating an automation based on a relationship anniversary date. I came across a relationship date calculator that shows how long a couple has been together and when the next anniversary is:

I’d like to create something similar in Home Assistant, but with an automation that sends a reminder before an upcoming anniversary.

For example, the user could enter a relationship start date, and Home Assistant would automatically calculate the next anniversary and send a notification a few days before it.

Has anyone built a date-based reminder like this?

I’m particularly interested in the best way to:

  • Store a custom anniversary date

  • Calculate the next yearly anniversary

  • Calculate the number of days remaining

  • Trigger a notification automatically

Any examples, templates, or automation ideas would be appreciated.Hi everyone,

I’m exploring the idea of creating an automation based on a relationship anniversary date. I came across a relationship date calculator that shows how long a couple has been together and when the next anniversary.

I’d like to create something similar in Home Assistant, but with an automation that sends a reminder before an upcoming anniversary.

For example, the user could enter a relationship start date, and Home Assistant would automatically calculate the next anniversary and send a notification a few days before it.

Has anyone built a date-based reminder like this?

I’m particularly interested in the best way to:

  • Store a custom anniversary date

  • Calculate the next yearly anniversary

  • Calculate the number of days remaining

  • Trigger a notification automatically

Any examples, templates, or automation ideas would be appreciated.

2

The closest to having a “automatic” notification option would be Annuals… It’s not really automatic, but the docs include automation examples and a reminders blueprint.