DateRange=function(a,b){this.start=s.create(a);this.end=s.create(b)};DateRange.prototype.toString=function(){return this.isValid()?this.start.full()+".."+this.end.full():"Invalid DateRange"};
E(DateRange,k,n,{isValid:function(){return this.start<this.end},duration:function(){return this.isValid()?this.end.getTime()-this.start.getTime():NaN},contains:function(a){var b=this;return(a.start&&a.end?[a.start,a.end]:[a]).every(function(c){return c>=b.start&&c<=b.end})},every:function(a,b){var c=this.start.clone(),d=[],e=0,f,h;if(C(a)){c.advance(ob(a,0),k);f=ob(a);h=a.toLowerCase()==="day"}else f={milliseconds:a};for(;c<=this.end;){d.push(c);b&&b(c,e);if(h&&V(c,"Hours")===23){c=c.clone();W(c,
"Hours",48)}else c=c.clone().advance(f,k);e++}return d},union:function(a){return new DateRange(this.start<a.start?this.start:a.start,this.end>a.end?this.end:a.end)},intersect:function(a){return new DateRange(this.start>a.start?this.start:a.start,this.end<a.end?this.end:a.end)}});H(DateRange,k,n,"Millisecond,Second,Minute,Hour,Day,Week,Month,Year",function(a,b){a["each"+b]=function(c){return this.every(b,c)}});E(s,n,n,{range:function(a,b){return new DateRange(a,b)}});