How to display a list with users who have DR today?

Question

Google Cloud Platform

sql bigquery has its own peculiarities, so the MySQL examples don't work. Task: display a list of users who have AR today. The birthday is stored in the 'birthday' field and has a date value of '2019-06-20'.
Every day I will need to get a list of users with DR for the current date.
for MySQL they offered this option: WHERE DATE_FORMAT(`date`, '%m%d') = DATE_FORMAT(CURDATE(), '%m%d')
but there is no DATE_FORMAT in GBQ. tried through EXTRACT, something does not work.