Date & Math Functions
date.add()
Add time to a timestamp.
Syntax: date.add(timestamp, value, unit)
Parameters:
| Parameter | Type | Description |
|---|---|---|
timestamp |
Long |
The timestamp (in milliseconds) |
value |
Long |
Amount to add (can be negative) |
unit |
String |
Unit of the value (ms, s, m, h, d) |
Returns: Long - New timestamp
APOC Compatible: apoc.date.add
RETURN date.add(date.currentTimestamp(), 1, "d") AS tomorrow
// Returns: timestamp for tomorrow
RETURN date.add(date.currentTimestamp(), -1, "h") AS oneHourAgo
// Returns: timestamp for 1 hour ago
date.convert()
Convert a timestamp between units.
Syntax: date.convert(timestamp, fromUnit, toUnit)
Returns: Long - Converted timestamp
APOC Compatible: apoc.date.convert
date.currentTimestamp()
Get the current timestamp in milliseconds.
Syntax: date.currentTimestamp()
Returns: Long - Current timestamp in milliseconds since epoch
APOC Compatible: apoc.date.currentTimestamp
RETURN date.currentTimestamp() AS now
// Returns: 1705314600000 (example)
date.field()
Extract a specific field from a timestamp.
Syntax: date.field(timestamp, field)
Returns: Long - Field value
APOC Compatible: apoc.date.field
date.fields()
Extract all fields from a timestamp as a map.
Syntax: date.fields(timestamp)
Returns: Map - Map of date fields
APOC Compatible: apoc.date.fields
date.format()
Format a timestamp to a date string.
Syntax: date.format(timestamp, unit, format)
Parameters:
| Parameter | Type | Description |
|---|---|---|
timestamp |
Long |
The timestamp value |
unit |
String |
Unit of the timestamp (ms, s, m, h, d) |
format |
String |
Date format pattern (Java SimpleDateFormat) |
Returns: String - Formatted date string
APOC Compatible: apoc.date.format
RETURN date.format(1705314600000, "ms", "yyyy-MM-dd HH:mm:ss") AS result
// Returns: "2024-01-15 10:30:00"
date.fromISO8601()
Parse an ISO 8601 string to timestamp.
Syntax: date.fromISO8601(dateString)
Returns: Long - Timestamp in milliseconds
APOC Compatible: apoc.date.fromISO8601
RETURN date.fromISO8601("2024-01-15T10:30:00Z") AS result
// Returns: 1705314600000
date.parse()
Parse a date string to timestamp.
Syntax: date.parse(dateString, format)
Returns: Long - Timestamp in milliseconds
APOC Compatible: apoc.date.parse
date.systemTimezone()
Get the system’s default timezone.
Syntax: date.systemTimezone()
Returns: String - Timezone ID (e.g., "America/New_York")
APOC Compatible: apoc.date.systemTimezone
date.toISO8601()
Convert a timestamp to ISO 8601 format.
Syntax: date.toISO8601(timestamp)
Returns: String - ISO 8601 formatted string
APOC Compatible: apoc.date.toISO8601
RETURN date.toISO8601(1705314600000) AS result
// Returns: "2024-01-15T10:30:00+00:00"
math.cosh()
Calculate the hyperbolic cosine.
Syntax: math.cosh(x)
Returns: Double - Hyperbolic cosine value
APOC Compatible: apoc.math.cosh
math.maxDouble()
Get the maximum double value.
Syntax: math.maxDouble()
Returns: Double - Maximum double value
APOC Compatible: apoc.math.maxDouble
math.maxLong()
Get the maximum long value.
Syntax: math.maxLong()
Returns: Long - Maximum long value (9223372036854775807)
APOC Compatible: apoc.math.maxLong
math.minLong()
Get the minimum long value.
Syntax: math.minLong()
Returns: Long - Minimum long value
APOC Compatible: apoc.math.minLong
math.sigmoid()
Calculate the sigmoid function.
Syntax: math.sigmoid(x)
Returns: Double - Sigmoid value (0-1)
APOC Compatible: apoc.math.sigmoid
RETURN math.sigmoid(0) AS result
// Returns: 0.5
RETURN math.sigmoid(10) AS result
// Returns: ~0.9999
math.sigmoidPrime()
Calculate the derivative of the sigmoid function.
Syntax: math.sigmoidPrime(x)
Returns: Double - Sigmoid derivative
APOC Compatible: apoc.math.sigmoidPrime