This function returns the date part of any given timestamp.

Syntax
 datePart(timestamp, timeZone) #Output: Number 
Examples
Parser expressionDescription
datePart({issue.created}, LOCAL)

This example returns the issue creation date, e.g. March 25th, 2020 00:00 as a number in milliseconds.

If the creation date was March 25th, 2020 23:15 the output would be March 25th, 2020 00:00 (in milliseconds).

The time part 23:15 will be removed from the timestamp and will be set to 00:00.

Additional information

Parameters used in this function

ParameterInput (data type)Description
timestamp

NUMBER

The parameter must be valid timestamp. Usually this value is retrieved from a field (e.g. due date, created date).
timeZone

TIMEZONE

The time zone used for the calculation. 

Output

This function returns a NUMBER representing a timestamp

If you need the time part instead, you might want to have a look at the function timePart().