fset(this,!0),this},yt.format=function(e){e=e||(this.isUtc()?M.defaultFormatUtc:M.defaultFormat);var a=A(this,e);return this.localeData().postformat(a)},yt.from=function(e,a){return this.isValid()&&(D(e)&&e.isValid()||Ha(e).isValid())?Ga({to:this,from:e}).locale(this.locale()).humanize(!a):this.localeData().invalidDate()},yt.fromNow=function(e){return this.from(Ha(),e)},yt.to=function(e,a){return this.isValid()&&(D(e)&&e.isValid()||Ha(e).isValid())?Ga({from:this,to:e}).locale(this.locale()).huma...