diff --git a/web/src/components/timeline/EventReviewTimeline.tsx b/web/src/components/timeline/EventReviewTimeline.tsx
index ff5b73373..20ea08492 100644
--- a/web/src/components/timeline/EventReviewTimeline.tsx
+++ b/web/src/components/timeline/EventReviewTimeline.tsx
@@ -89,7 +89,7 @@ export function EventReviewTimeline({
     const segmentAlignedTime = alignDateToTimeline(timelineStart);
 
     return Array.from({ length: segmentCount }, (_, index) => {
-      const segmentTime = segmentAlignedTime - index * segmentDuration * 1000;
+      const segmentTime = segmentAlignedTime - index * segmentDuration;
 
       return (
         <EventSegment
@@ -134,7 +134,7 @@ export function EventReviewTimeline({
       requestAnimationFrame(() => {
         if (currentTimeRef.current && currentTimeSegment) {
           currentTimeRef.current.textContent = new Date(
-            currentTimeSegment
+            currentTimeSegment * 1000
           ).toLocaleTimeString([], {
             hour: "2-digit",
             minute: "2-digit",
@@ -156,7 +156,7 @@ export function EventReviewTimeline({
       // Calculate the segment index corresponding to the target time
       const alignedHandlebarTime = alignDateToTimeline(handlebarTime);
       const segmentIndex = Math.ceil(
-        (timelineStart - alignedHandlebarTime) / (segmentDuration * 1000)
+        (timelineStart - alignedHandlebarTime) / segmentDuration
       );
 
       // Calculate the top position based on the segment index
diff --git a/web/src/components/timeline/EventSegment.tsx b/web/src/components/timeline/EventSegment.tsx
index 76b51688a..d300969ae 100644
--- a/web/src/components/timeline/EventSegment.tsx
+++ b/web/src/components/timeline/EventSegment.tsx
@@ -46,7 +46,7 @@ function MinimapBounds({
     <>
       {isFirstSegmentInMinimap && (
         <div className="absolute inset-0 -bottom-5 w-full flex items-center justify-center text-xs text-primary font-medium z-20 text-center text-[9px]">
-          {new Date(alignedMinimapStartTime).toLocaleTimeString([], {
+          {new Date(alignedMinimapStartTime * 1000).toLocaleTimeString([], {
             hour: "2-digit",
             minute: "2-digit",
             month: "short",
@@ -57,7 +57,7 @@ function MinimapBounds({
 
       {isLastSegmentInMinimap && (
         <div className="absolute inset-0 -top-1 w-full flex items-center justify-center text-xs text-primary font-medium z-20 text-center text-[9px]">
-          {new Date(alignedMinimapEndTime).toLocaleTimeString([], {
+          {new Date(alignedMinimapEndTime * 1000).toLocaleTimeString([], {
             hour: "2-digit",
             minute: "2-digit",
             month: "short",
@@ -153,11 +153,8 @@ export function EventSegment({
     [shouldShowRoundedCorners, segmentTime]
   );
 
-  const timestamp = useMemo(() => new Date(segmentTime), [segmentTime]);
-  const segmentKey = useMemo(
-    () => Math.floor(segmentTime / 1000),
-    [segmentTime]
-  );
+  const timestamp = useMemo(() => new Date(segmentTime * 1000), [segmentTime]);
+  const segmentKey = useMemo(() => segmentTime, [segmentTime]);
 
   const alignedMinimapStartTime = useMemo(
     () => alignDateToTimeline(minimapStartTime ?? 0),
diff --git a/web/src/hooks/use-event-utils.ts b/web/src/hooks/use-event-utils.ts
index f0aa38f70..d7f4d64ca 100644
--- a/web/src/hooks/use-event-utils.ts
+++ b/web/src/hooks/use-event-utils.ts
@@ -5,7 +5,7 @@ export const useEventUtils = (events: Event[], segmentDuration: number) => {
   const isStartOfEvent = useCallback((time: number): boolean => {
     return events.some((event) => {
       const segmentStart = getSegmentStart(event.start_time);
-      return time >= segmentStart && time < segmentStart + segmentDuration * 1000;
+      return time >= segmentStart && time < segmentStart + segmentDuration;
     });
   }, [events, segmentDuration]);
 
@@ -13,23 +13,23 @@ export const useEventUtils = (events: Event[], segmentDuration: number) => {
     return events.some((event) => {
       if (typeof event.end_time === 'number') {
         const segmentEnd = getSegmentEnd(event.end_time);
-        return time >= segmentEnd - segmentDuration * 1000 && time < segmentEnd;
+        return time >= segmentEnd - segmentDuration && time < segmentEnd;
       }
       return false; // Return false if end_time is undefined
     });
   }, [events, segmentDuration]);
 
   const getSegmentStart = useCallback((time: number): number => {
-    return Math.floor(time / (segmentDuration * 1000)) * (segmentDuration * 1000);
+    return Math.floor(time / (segmentDuration)) * (segmentDuration);
   }, [segmentDuration]);
 
   const getSegmentEnd = useCallback((time: number): number => {
-    return Math.ceil(time / (segmentDuration * 1000)) * (segmentDuration * 1000);
+    return Math.ceil(time / (segmentDuration)) * (segmentDuration);
   }, [segmentDuration]);
 
   const alignDateToTimeline = useCallback((time: number): number => {
-    const remainder = time % (segmentDuration * 1000);
-    const adjustment = remainder !== 0 ? segmentDuration * 1000 - remainder : 0;
+    const remainder = time % (segmentDuration);
+    const adjustment = remainder !== 0 ? segmentDuration - remainder : 0;
     return time + adjustment;
   }, [segmentDuration]);
 
diff --git a/web/src/hooks/use-handle-dragging.ts b/web/src/hooks/use-handle-dragging.ts
index d0e180646..6d74384ca 100644
--- a/web/src/hooks/use-handle-dragging.ts
+++ b/web/src/hooks/use-handle-dragging.ts
@@ -91,7 +91,7 @@ function useDraggableHandler({
 
         const segmentIndex = Math.floor(newHandlePosition / segmentHeight);
         const segmentStartTime = alignDateToTimeline(
-          Math.floor(timelineStart - segmentIndex * segmentDuration * 1000)
+          timelineStart - segmentIndex * segmentDuration
         );
 
         if (showHandlebar) {
@@ -100,7 +100,7 @@ function useDraggableHandler({
             thumb.style.top = `${newHandlePosition - segmentHeight}px`;
             if (currentTimeRef.current) {
               currentTimeRef.current.textContent = new Date(
-                segmentStartTime
+                segmentStartTime*1000
               ).toLocaleTimeString([], {
                 hour: "2-digit",
                 minute: "2-digit",
diff --git a/web/src/hooks/use-segment-utils.ts b/web/src/hooks/use-segment-utils.ts
index 09b2ef493..82458e751 100644
--- a/web/src/hooks/use-segment-utils.ts
+++ b/web/src/hooks/use-segment-utils.ts
@@ -7,14 +7,14 @@ export const useSegmentUtils = (
   severityType: string,
 ) => {
   const getSegmentStart = useCallback((time: number): number => {
-    return Math.floor(time / (segmentDuration * 1000)) * (segmentDuration * 1000);
+    return Math.floor(time / (segmentDuration)) * (segmentDuration);
   }, [segmentDuration]);
 
     const getSegmentEnd = useCallback((time: number | undefined): number => {
         if (time) {
-            return Math.ceil(time / (segmentDuration * 1000)) * (segmentDuration * 1000);
+            return Math.ceil(time / (segmentDuration)) * (segmentDuration);
         } else {
-            return Date.now()+(segmentDuration*1000);
+            return (Date.now()/1000)+(segmentDuration);
         }
   }, [segmentDuration]);
 
@@ -61,8 +61,8 @@ export const useSegmentUtils = (
 
   const shouldShowRoundedCorners = useCallback(
     (segmentTime: number): boolean => {
-      const prevSegmentTime = segmentTime - segmentDuration * 1000;
-      const nextSegmentTime = segmentTime + segmentDuration * 1000;
+      const prevSegmentTime = segmentTime - segmentDuration;
+      const nextSegmentTime = segmentTime + segmentDuration;
 
       const hasPrevEvent = events.some((e) => {
         return (
diff --git a/web/src/pages/UIPlayground.tsx b/web/src/pages/UIPlayground.tsx
index 2c23acce1..e2507c190 100644
--- a/web/src/pages/UIPlayground.tsx
+++ b/web/src/pages/UIPlayground.tsx
@@ -59,12 +59,12 @@ function eventsToScrubberItems(events: Event[]): ScrubberItem[] {
 }
 
 const generateRandomEvent = (): Event => {
-  const start_time = Date.now() - Math.random() * 3600000 * 3;
-  const end_time = start_time + Math.random() * 360000;
+  const start_time = Math.floor(Date.now() / 1000) - Math.random() * 60 * 60;
+  const end_time = Math.floor(start_time + Math.random() * 60 * 10);
   const severities = ["motion", "detection", "alert"];
   const severity = severities[Math.floor(Math.random() * severities.length)];
   const has_been_reviewed = Math.random() < 0.2;
-  const id = new Date(start_time).toISOString(); // Date string as mock ID
+  const id = new Date(start_time * 1000).toISOString(); // Date string as mock ID
   return { id, start_time, end_time, severity, has_been_reviewed };
 };
 
@@ -91,6 +91,7 @@ function UIPlayground() {
   useMemo(() => {
     const initialEvents = Array.from({ length: 50 }, generateRandomEvent);
     setMockEvents(initialEvents);
+    console.log(initialEvents);
   }, []);
 
   return (
@@ -161,13 +162,13 @@ function UIPlayground() {
           <EventReviewTimeline
             segmentDuration={60} // seconds per segment
             timestampSpread={15} // minutes between each major timestamp
-            timelineStart={Date.now()} // start of the timeline - all times are numeric, not Date objects
+            timelineStart={Math.floor(Date.now() / 1000)} // start of the timeline - all times are numeric, not Date objects
             timelineDuration={24 * 60 * 60} // in minutes, defaults to 24 hours
             showHandlebar // show / hide the handlebar
-            handlebarTime={Date.now() - 27 * 60 * 1000} // set the time of the handlebar
+            handlebarTime={Math.floor(Date.now() / 1000) - 27 * 60} // set the time of the handlebar
             showMinimap // show / hide the minimap
-            minimapStartTime={Date.now() - 35 * 60 * 1000} // start time of the minimap - the earlier time (eg 1:00pm)
-            minimapEndTime={Date.now() - 21 * 60 * 1000} // end of the minimap - the later time (eg 3:00pm)
+            minimapStartTime={Math.floor(Date.now() / 1000) - 35 * 60} // start time of the minimap - the earlier time (eg 1:00pm)
+            minimapEndTime={Math.floor(Date.now() / 1000) - 21 * 60} // end of the minimap - the later time (eg 3:00pm)
             events={mockEvents} // events, including new has_been_reviewed and severity properties
             severityType={"alert"} // choose the severity type for the middle line - all other severity types are to the right
             contentRef={contentRef} // optional content ref where previews are, can be used for observing/scrolling later