Meaning of the number of days in an average age?

I would like to know the average age of my users and did the following to do that:

# SELECT avg(age(birthday)) FROM "user";                    avg ------------------------------------------  33 years 10 mons 32 days 08:33:10.577946 

What does the number of days mean? How can it be over 31 days?

Thank you

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Category: postgresql Time: 2016-07-29 Views: 0
Tags: postgresql

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