Copy value of @timestamp to another field


I am trying to copy the value of @timestamp to new field timestamp keeping the same format.
Is that possible ? Do you have any suggestion ?

Thank you.


It'd be useful if you could share what you are trying, along with examples of why it's not working for you.

Otherwise we're guessing at what format you have and want to maintain.

Thanks for the reply.
The default format of @timestamp "2021-09-20T13:08:56.181Z". I am trying copy the value of the field @timestamp in a new field using filebeat, but @timestamp is special beat.Event field, so i cant use processors to manipulate it.
Thank you.

Can you please share the config that you are trying to use.

Maybe this will help:

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