## Syntax
```mermaid
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flowchart LR
Start((START)) --> HOUR[HOUR]:::quoted
HOUR --> End((END))
```
## Purpose
The `HOUR` SQL function extract the hour from a date/time.
See also [[DAY]], [[MICROSECOND]], [[MILLISECOND]], [[MINUTE]], [[MONTH]], [[SECOND]] and [[YEAR]].
Parameters:
- Input (`datetime`): the date/time to extract the hours from.
Returns: the hour as an `int32`.
## Examples
The following example extracts the hours from current system date/time in UTC:
```sql
select hour(sysdateutc)
-------------------
13
```
The following example extracts the hours from noon January 1, 2026:
```sql
select hour(to_date('20260101120000', 'YYYYMMDDHH24MISS'))
-------------------
12
```