diff --git a/src/resource/ResourceEventRenderer.js b/src/resource/ResourceEventRenderer.js
index 8c896d8..0e83e7a 100644
--- a/src/resource/ResourceEventRenderer.js
+++ b/src/resource/ResourceEventRenderer.js
@@ -106,7 +106,7 @@ function ResourceEventRenderer() {
 					resourceEvents,
 					visEventEnds,
 					d,
-					addMinutes(cloneDate(d), maxMinute-minMinute)
+					addMinutes(d.clone(), maxMinute-minMinute)
 				)
 			);
 			countForwardSegs(col);
@@ -137,14 +137,14 @@ function ResourceEventRenderer() {
 			eventEnd = visEventEnds[i];
 			if (eventEnd > start && eventStart < end) {
 				if (eventStart < start) {
-					segStart = cloneDate(start);
+					segStart = start.clone();
 					isStart = false;
 				}else{
 					segStart = eventStart;
 					isStart = true;
 				}
 				if (eventEnd > end) {
-					segEnd = cloneDate(end);
+					segEnd = end.clone();
 					isEnd = false;
 				}else{
 					segEnd = eventEnd;
@@ -175,9 +175,9 @@ function ResourceEventRenderer() {
 
 	function slotEventEnd(event) {
 		if (event.end) {
-			return cloneDate(event.end);
+			return event.end.clone();
 		}else{
-			return addMinutes(cloneDate(event.start), opt('defaultEventMinutes'));
+			return addMinutes(event.start.clone(), opt('defaultEventMinutes'));
 		}
 	}
 	
@@ -415,7 +415,7 @@ function ResourceEventRenderer() {
 						if (!cell.row) {
 							// on full-days
 							renderDayOverlay(
-								addDays(cloneDate(event.start), dayDelta),
+								addDays(event.start.clone(), dayDelta),
 								addDays(exclEndDay(event), dayDelta)
 							);
 							resetElement();
@@ -618,7 +618,7 @@ function ResourceEventRenderer() {
 					timeElement.hide();
 					eventElement.draggable('option', 'grid', null); // disable grid snapping
 					renderDayOverlay(
-						addDays(cloneDate(event.start), dayDelta),
+						addDays(event.start.clone(), dayDelta),
 						addDays(exclEndDay(event), dayDelta)
 					);
 				}
@@ -631,10 +631,10 @@ function ResourceEventRenderer() {
 		}
 
 		function updateTimeText(minuteDelta) {
-			var newStart = addMinutes(cloneDate(event.start), minuteDelta);
+			var newStart = addMinutes(event.start.clone(), minuteDelta);
 			var newEnd;
 			if (event.end) {
-				newEnd = addMinutes(cloneDate(event.end), minuteDelta);
+				newEnd = addMinutes(event.end.clone(), minuteDelta);
 			}
 			timeElement.text(formatDates(newStart, newEnd, opt('timeFormat')));
 		}
diff --git a/src/resource/ResourceView.js b/src/resource/ResourceView.js
index 6299ca2..0fb5e2d 100644
--- a/src/resource/ResourceView.js
+++ b/src/resource/ResourceView.js
@@ -238,7 +238,7 @@ function ResourceView(element, calendar, viewName) {
 			"<table class='fc-agenda-slots' style='width:100%' cellspacing='0'>" +
 			"<tbody>";
 		d = zeroDate();
-		maxd = addMinutes(cloneDate(d), maxMinute);
+		maxd = addMinutes(d.clone(), maxMinute);
 		addMinutes(d, minMinute);
 		slotCnt = 0;
 		for (i=0; d < maxd; i++) {
@@ -376,7 +376,7 @@ function ResourceView(element, calendar, viewName) {
 
 		for (col=0; col<colCnt; col++) {
 
-			date = cloneDate(t.visStart);
+			date = t.visStart.clone();
 
 			classNames = [
 				'fc-col' + col,
@@ -508,7 +508,7 @@ function ResourceView(element, calendar, viewName) {
 
 	function resetScroll() {
 		var d0 = zeroDate();
-		var scrollDate = cloneDate(d0);
+		var scrollDate = d0.clone();
 		scrollDate.setHours(opt('firstHour'));
 		var top = timePosition(d0, scrollDate) + 1; // +1 for the border
 		function scroll() {
@@ -586,7 +586,7 @@ function ResourceView(element, calendar, viewName) {
 
 	function renderSlotOverlay(overlayStart, overlayEnd, col) {
 		var dayStart = cellToDate(0, 0);
-		var dayEnd = addDays(cloneDate(dayStart), 1);
+		var dayEnd = addDays(dayStart.clone(), 1);
 		var stretchStart = new Date(Math.max(dayStart, overlayStart));
 		var stretchEnd = new Date(Math.min(dayEnd, overlayEnd));
 		if (stretchStart < stretchEnd) {
@@ -690,11 +690,11 @@ function ResourceView(element, calendar, viewName) {
 	
 	// get the Y coordinate of the given time on the given day (both Date objects)
 	function timePosition(day, time) { // both date objects. day holds 00:00 of current day
-		day = cloneDate(day, true);
-		if (time < addMinutes(cloneDate(day), minMinute)) {
+		day = day.clone().stripTime();
+		if (time < addMinutes(day.clone(), minMinute)) {
 			return 0;
 		}
-		if (time >= addMinutes(cloneDate(day), maxMinute)) {
+		if (time >= addMinutes(day.clone(), maxMinute)) {
 			return slotTable.height();
 		}
 		var slotMinutes = opt('slotMinutes'),
@@ -720,7 +720,7 @@ function ResourceView(element, calendar, viewName) {
 	
 	
 	function defaultEventEnd(event) {
-		var start = cloneDate(event.start);
+		var start = event.start.clone();
 		if (event.allDay) {
 			return start;
 		}
@@ -735,9 +735,9 @@ function ResourceView(element, calendar, viewName) {
 	
 	function defaultSelectionEnd(startDate, allDay) {
 		if (allDay) {
-			return cloneDate(startDate);
+			return startDate.clone();
 		}
-		return addMinutes(cloneDate(startDate), opt('slotMinutes'));
+		return addMinutes(startDate.clone(), opt('slotMinutes'));
 	}
 	
 	
@@ -858,9 +858,9 @@ function ResourceView(element, calendar, viewName) {
 					var d2 = realCellToDate(cell);
 					dates = [
 						d1,
-						addMinutes(cloneDate(d1), snapMinutes), // calculate minutes depending on selection slot minutes 
+						addMinutes(d1.clone(), snapMinutes), // calculate minutes depending on selection slot minutes
 						d2,
-						addMinutes(cloneDate(d2), snapMinutes)
+						addMinutes(d2.clone(), snapMinutes)
 					].sort(dateCompare);
 					renderSlotSelection(dates[0], dates[3], cell.col);
 				}else{
@@ -899,7 +899,7 @@ function ResourceView(element, calendar, viewName) {
 					renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
 				}else{
 					var d1 = realCellToDate(cell);
-					var d2 = addMinutes(cloneDate(d1), opt('defaultEventMinutes'));
+					var d2 = addMinutes(d1.clone(), opt('defaultEventMinutes'));
 					renderSlotOverlay(d1, d2, cell.col);
 				}
 			}