How I can reset Night bot stats?

I need to see top chatter per day but NB show me stats for all time. May be there is some command for looking top chatter for just one day or I can reset stats?

There is no way to reset nightbot stats currently. I don’t know if there are any plans to add such a thing for the future, the top chatter and commands info is mainly just general stats for the streamer to see from the nightbot logs. The nightbot logs go back 2 weeks, which is when the data starts changing for that info.