add timestamp

Author: JPryce-Aklundh

modules/ROOT/pages/functions/index.adoc

@@ -445,6 +445,10 @@ Replaced by xref:functions/scalar.adoc#functions-elementid[`elementId()`].
 | `startNode(input :: RELATIONSHIP) :: NODE`
 | Returns the start `NODE` of a `RELATIONSHIP`.
 
+1.1+| xref::functions/scalar.adoc#functions-timestamp[`timestamp()`]
+| `timestamp() :: INTEGER`
+| Returns the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.
+
 1.1+| xref::functions/scalar.adoc#functions-toboolean[`toBoolean()`]
 | `toBoolean(input :: BOOLEAN \| STRING \| INTEGER) :: BOOLEAN`
 | Converts a `BOOLEAN`, `STRING`, or an `INTEGER` value to a `BOOLEAN` value.

modules/ROOT/pages/functions/scalar.adoc

@@ -855,14 +855,12 @@ RETURN startNode(r)
 .Details
 |===
 | *Syntax* 3+| `timestamp()`
-| *Description* 3+| Returns the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC
+| *Description* 3+| Returns the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.
 | *Returns* 3+| `INTEGER`
 |===
 
 [NOTE]
-====
-It is the equivalent of `datetime().epochMillis`.
-====
+xref:functions/temporal/index.adoc#functions-datetime-fromepochmillis[`datetime.epochMillis()`] is a functional equivalent to `timestamp()`.
 
 .Considerations
 |===