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

Fauna accounts created after August 21, 2024 must use FQL v10. These accounts will not be able to run FQL v4 queries or access the v4 Dashboard.

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

Epoch

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

 
Epoch( num, unit )
epoch(0, unit )
Epoch( num, unit )
Epoch( num, unit )
Epoch( num, unit )
Epoch( num, unit )

Description

The Epoch function constructs a Timestamp relative to the Unix epoch (1970-01-01T00:00:00Z).

The num argument must be an integer value. The unit argument specifies the scale of num.

Parameters

Parameter Type Definition and Requirements

num

Number

A mathematical integer value specifying the offset from epoch.

unit

String

Indicates the units used by num. Must be one of:

  • day, or days

  • half day, or half days

  • hour, or hours

  • minute, or minutes

  • second, or seconds

  • millisecond, or milliseconds

  • microsecond, or microseconds

  • nanosecond, or nanoseconds

Returns

A Timestamp which represents Unix epoch plus the offset represented by num and unit.

Examples

The following query adds 0 seconds to the Unix epoch (1970-01-01T00:00:00Z) and returns a timestamp:

client.query(
  q.Epoch(0, 'second')
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
Time("1970-01-01T00:00:00Z")
result = client.query(
  q.epoch(0, "second")
)
print(result)
FaunaTime('1970-01-01T00:00:00Z')
result, err := client.Query(
	f.Epoch(0, f.TimeUnitSecond))

if err != nil {
	fmt.Fprintln(os.Stderr, err)
} else {
	fmt.Println(result)
}
{0 62135596800 <nil>}
try
{
    Value result = await client.Query(
        Epoch(0, "second")
    );
    Console.WriteLine(result);
}
catch (Exception e)
{
    Console.WriteLine($"ERROR: {e.Message}");
}
FaunaTime(1970-01-01T00:00:00Z)
System.out.println(
    client.query(
        Epoch(Value(0), TimeUnit.SECOND)
    ).get());
1970-01-01T00:00:00Z
Epoch(0, 'second')
Time("1970-01-01T00:00:00Z")
Query metrics:

  •    bytesIn:  27

  •   bytesOut:  43

  • computeOps:   1

  •    readOps:   0

  •   writeOps:   0

  •  readBytes:   0

  • writeBytes:   0

  •  queryTime: 3ms

  •    retries:   0

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