To clarify, you're looking for all issues (which represent users) who don't have a birthday today - so a JQL for day and month which ignores year (given that year could be anything in a 100 year spread)?
This isn't something which is possible with base JQL, as it searches for specific dates - eg. startofDay() assumes that is today in 2019, not today in any year.
You'd need to consider a scripted field or similar which can identify if today is a user's birthday using the day and month. An app like ScriptRunner should allow you to do this. I'm not so hot on ScriptRunner Cloud though so best to read through the vendor's support page or contact them directly with that question!
A simple alternative is to set their birthday each year to the actual date - for example:
More manual, but a simpler fix.
Let me know if this was not the issue or the field isn't on an issue-level but a user-level.
For Jira cloud, we created a small tool, which could help to remind about the colleagues' birthdays. More details on the Marketplace:
By the way - an interesting feature is to get the horoscope prediction for your zodiac sign with this application.
Hi community 👋, as every Monday we're bringing you a quick update on what happened in the Atlassian ecosystem last week. There were a few interesting events like for example the announcement of th...
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