FQL v4 will be decommissioned on June 30, 2025. Ensure that you complete your migration from FQL v4 to FQL v10 by that date.

For more details, see the v4 EOL announcement and migration guide. Contact support@fauna.com with any questions.

Hour

This reference topic applies to FQL v4. Go to this page for the latest FQL v10 reference topics.

Hour( timestamp )
hour( timestamp )
Hour( timestamp )
Hour( timestamp )
Hour( timestamp )

Description

The Hour function extracts the hour from a Timestamp.

Parameters

Parameter Type Definition and Requirements

timestamp

Timestamp

A timestamp.

Returns

A Number which represents the value of the hour, in the range 0 to 23, from the provided timestamp.

Examples

The following query returns the hour from a timestamp:

client.query(
  q.Hour(q.Time('2019-04-29T12:51:17Z'))
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
12
result = client.query(
  q.hour(q.time("2019-04-29T12:51:17Z"))
)
print(result)
12
result, err := client.Query(
	f.Hour(f.Time("2019-04-29T12:51:17Z")))

if err != nil {
	fmt.Fprintln(os.Stderr, err)
} else {
	fmt.Println(result)
}
12
try
{
    Value result = await client.Query(
        Hour(Time("2019-04-29T12:51:17Z"))
    );
    Console.WriteLine(result);
}
catch (Exception e)
{
    Console.WriteLine($"ERROR: {e.Message}");
}
LongV(12)
Hour(Time('2019-04-29T12:51:17Z'))
12
Query metrics:
  •    bytesIn:  40

  •   bytesOut:  15

  • computeOps:   1

  •    readOps:   0

  •   writeOps:   0

  •  readBytes:   0

  • writeBytes:   0

  •  queryTime: 1ms

  •    retries:   0

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