In Neo4j, you can use the datetime function to convert a string representation of a date and time to a datetime value. The datetime function takes a string in the ISO-8601 format (e.g., “2020-01-01T12:00:00Z”) and returns a datetime value that can be stored in a Neo4j property.

Here is an example of how to use the datetime function to convert a string to a datetime value in a Neo4j query:

// Convert a string to a datetime value
WITH '2020-01-01T12:00:00Z' AS input
RETURN datetime(input) AS output

This query converts the string “2020-01-01T12:00:00Z” to a datetime value and returns the result as the output column. The resulting datetime value can then be used in other queries or stored in a Neo4j property.

You can also use the toString function to convert a datetime value to a string representation. For example:

// Convert a datetime value to a string
WITH datetime('2020-01-01T12:00:00Z') AS input
RETURN toString(input) AS output

This query converts the datetime value “2020-01-01T12:00:00Z” to a string and returns the result as the output column.

Keep in mind that the datetime and toString functions are only available in Neo4j versions 3.5 and later. If you are using an earlier version of Neo4j, you can use the timestamp function to convert a string to a timestamp value, or the to_timestamp function to convert a timestamp value to a string.