Extract hour and weekday from custom date time field

[Jenni]

This might help:

Strftime is not working Logshtash ruby code

The LogStash::Timestamp class has a time method. Try... ruby { code => "event.set('read_time' , event.get('@timestamp').time.strftime('%Y-%m'))" }

and I think that you need to write .time.localtime if you don't want to use UTC for the hour and weekday, but your local timezone.