Persist execution time as variable in plugin, possible?

[meteoDaniel]

We are using cronicle to run e.g. python scripts in docker containers. These python scripts require a fixed timestamp according to the execution time.
E.g.: we have execution time 06:00 , we need this as a parameter because in case of a retry it is difficult to obtain the origin execution time of the task. It is the cause of using a DATE variable defined within the shell script plugin:

DATE=$(date -d -u +"%Y-%m-%dT06:00:00+00:00")

So is there a way to have the execution time as variable (e.g. env variable in shell script) ? Or do you have other solutions to persist the execution time?

@jhuckaby