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32 lines
901 B
Markdown
32 lines
901 B
Markdown
# Convert A String To A Timestamp
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If you have a string that represents a point in time, there are a couple
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ways that you can convert it to a PostgreSQL `timestamptz` value.
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If the string is in [ISO 8601
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format](https://en.wikipedia.org/wiki/ISO_8601), then it can be simply cast
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to `timestamptz`.
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```sql
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> select '2018-10-24'::timestamptz;
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timestamptz
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------------------------
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2018-10-24 00:00:00-05
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```
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A more general purpose approach is to use the
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[`to_timestamp`](https://www.postgresql.org/docs/11/static/functions-formatting.html)
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function.
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```sql
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> select to_timestamp('2018-10-24', 'YYYY-MM-DD');
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to_timestamp
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------------------------
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2018-10-24 00:00:00-05
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```
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The first argument is our string-to-be-converted in whatever format. The
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second argument is another string describing in what format that string is.
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Note: Both of these approaches produce a `timestamptz` value.
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