justify_days()

Adjust interval, converting 30-day time periods to months

Signature

justify_days ( interval ) → interval

Examples

SELECT justify_days(interval '1 year 65 days');
1 year 2 mons 5 days

Run against PostgreSQL 18.6 on 2026-09-13. This is the output we got, not the documentation’s.

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Signature and description adapted from the PostgreSQL manual, used under the PostgreSQL License. PostgreSQL is a registered trademark of the PostgreSQL Community Association of Canada. This page is not affiliated with the PostgreSQL Global Development Group.