I have a specific requirement where I need to be able to manually set the timestamp value for a log entry in winston. The use case can be described as being a time machine, so I need to be able to see how logs would have been output going back through time.

I see that the format.timestamp(opts?: TimestampOptions) method has options, but they appear to be only for formatting:

export interface TimestampOptions {
  /**
   * Either the format as a string accepted by the [fecha](https://github.com/taylorhakes/fecha)
   * module or a function that returns a formatted date. If no format is provided `new
   * Date().toISOString()` will be used.
   */
  format?: string | (() => string);
  /**
   * The name of an alias for the timestamp property, that will be added to the `info` object.
   */
  alias?: string;
}

Is there a way to do it without creating a custom logger?