You can call it "repentence" if that word makes you more comfortable ... we call it time-sculpting because we chip away at sins or bad habits with every second of the 86400 second day. If you don't DO THIS with every second of your day, you are just pharisaically deluding yourself with sanctimonius language of repentenece-speak. Time-sculpting is how we DO repenteance, practically, concretely in a disciplined fashion.