PostgreSQL raises invalid_datetime_format (SQLSTATE 22007) when a string cannot be parsed into DATE, TIME, or TIMESTAMP.
invalid_datetime_format (SQLSTATE 22007) appears when PostgreSQL cannot parse a string into a valid DATE, TIME, or TIMESTAMP. Check the literal, apply the correct format or use TO_DATE/TO_TIMESTAMP with an explicit template to resolve the error.
invalid_datetime_format
PostgreSQL throws error code 22007 when it tries to convert a string to a DATE, TIME, or TIMESTAMP but the text does not match the expected format.
The server stops the statement immediately, so no rows are inserted, updated, or selected until the input is corrected.
Bad literal syntax is the primary trigger.
Using US-style dates in a database configured for ISO, missing leading zeros, and out-of-range values also cause failure.
Implicit casts inside functions, COPY, or parameterized queries may hide the bad value until execution, making troubleshooting harder.
Verify the literal or parameter matches the server’s datestyle.
For ad-hoc queries, wrap the value with an explicit cast template using TO_DATE or TO_TIMESTAMP.
If the value comes from an application, sanitize or parametrize the input before sending it to PostgreSQL.
Bulk loads with COPY often fail because the CSV holds mixed date formats. Pre-clean the file or load into a staging text column, then CAST inside INSERT SELECT.
ORM-generated SQL may send locale-specific dates.
Override the driver to use ISO-8601 strings, which PostgreSQL always accepts.
Store dates in ISO-8601 (YYYY-MM-DD) and timestamps in UTC ISO-8601. Set datestyle = 'ISO, YMD' at the database level.
Add CHECK constraints or domain types that validate date strings on insert, catching issues early.
Error 22008 (datetime_field_overflow) signals a value like 2024-02-31.
The troubleshooting steps are similar: correct the literal or use TO_DATE with a template.
Error 42804 (datatype_mismatch) appears when casting text to timestamp without time zone in strict mode. Cast or convert properly to resolve.
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Yes. The datestyle setting governs how PostgreSQL parses ambiguous date strings.
PostgreSQL reliably parses ISO-8601, so prefer it for literals and application parameters.
Run SET datestyle = 'ISO, DMY'; at the start of a session to override the default safely.
Galaxy highlights failed CAST statements inline and offers AI-based fixes, ensuring corrected formats before execution.
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