Setting expression in Time Event is throwing error

[aravindhrs]

@abhi1o3 Timers are configured using an ISO 8601 time format. Date should be specified as UTC format like 2016-03-11T12:13:14 or UTC (e.g., 2016-03-11T12:13:14Z ) or with a UTC-relative offset (e.g., 2016-03-11T12:13:14+01 ).

You should use like this ${dateTime().minusDays(1).toDate()}.

@abhi1o3

Cannot submit task form af217643-d634-11e9-b971-54bf649b047a: Error while evaluating expression: ${dateTime().parse(startDate).minusDays(1).toDate()}. Cause: java.lang.IllegalArgumentException: Invalid format: “Fri Sep 13 00:00:00 IST 2019”

Parsing the date will return string representation of date value. So you can use dateformatter to parse date in ISO format like yyyy-MM-dd'T'HH:MM:ss SSSZ

Refer these below posts will be helpful:

Expression Language | docs.camunda.org

Add or subtract days from variable in date timer definition

Hi, in my process the user enters a date to start an instance - stored in variable “startDate”. I’d like to send a reminder message on the day before that entered day. Unfortunately, I cannot get it running using a timer definition like “${startDate - 1}” or “${dateTime(startDate) - 1}”. I suppose this is a common scenario, so I assume that I just miss something? How would I properly solve this? My current “solution” is to define an output variable like “remindDate” on a task before, but in my…

Date Format | docs.camunda.org