diff --git a/src/api/client.js b/src/api/client.js
index 63cfe28..e6a4840 100644
--- a/src/api/client.js
+++ b/src/api/client.js
@@ -409,7 +409,7 @@ export async function fetchSmartFeed(params = {}) {
   if (typeof params.zoom === "number") qs.set("zoom", String(params.zoom));
   if (params.category) qs.set("category", String(params.category));
   if (params.sub_category) qs.set("sub_category", String(params.sub_category));
-  if (params.time_filter) qs.set("time_filter", String(params.time_filter));
+  if (params.time_hours) qs.set("time_hours", String(params.time_hours));
 
   // NEW: Screen bounds for on-screen prioritization
   if (params.bounds) {
diff --git a/src/components/Filters/TimeFilterButtons.jsx b/src/components/Filters/TimeFilterButtons.jsx
index 47e8d80..42106eb 100644
--- a/src/components/Filters/TimeFilterButtons.jsx
+++ b/src/components/Filters/TimeFilterButtons.jsx
@@ -1,21 +1,21 @@
 import React from "react";
 
-export default function TimeFilterButtons({ active, onSelect }) {
+export default function TimeFilterButtons({ activeHours, onSelect }) {
   const buttons = [
-    { code: "NOW",    label: "Now",    icon: "fa-solid fa-bolt" },
-    { code: "TODAY",  label: "Today",  icon: "fa-solid fa-sun" },
-    { code: "RECENT", label: "Recent", icon: "fa-solid fa-clock-rotate-left" },
-  { code: "PAST",   label: "Old",    icon: "fa-solid fa-hourglass-half" },
+    { hours: 2, label: "Now", icon: "fa-solid fa-bolt" },
+    { hours: 24, label: "Today", icon: "fa-solid fa-sun" },
+    { hours: 72, label: "Recent", icon: "fa-solid fa-clock-rotate-left" },
+    { hours: 336, label: "Old", icon: "fa-solid fa-hourglass-half" },
   ];
 
   return (
     <div className="sw-icon-column">
       {buttons.map((btn) => (
         <button
-          key={btn.code}
+          key={btn.hours}
           type="button"
-          className={"sw-icon-btn" + (active === btn.code ? " sw-icon-active" : "")}
-          onClick={() => onSelect && onSelect(btn.code)}
+          className={"sw-icon-btn" + (activeHours === btn.hours ? " sw-icon-active" : "")}
+          onClick={() => onSelect && onSelect(btn.hours)}
         >
           <div className="sw-icon-circle">
             <i className={btn.icon} />
diff --git a/src/components/Map/MapView.jsx b/src/components/Map/MapView.jsx
index 257516a..98c234f 100644
--- a/src/components/Map/MapView.jsx
+++ b/src/components/Map/MapView.jsx
@@ -40,14 +40,14 @@ export default function MapView({
     useMapCore(theme);
 
   const [mainFilter, setMainFilter] = useState("All");
-  const TIME_FILTER_KEY = "sociowire:timeFilter";
-  const [timeFilter, setTimeFilter] = useState(() => {
+  const TIME_FILTER_KEY = "sociowire:timeHours";
+  const [timeHours, setTimeHours] = useState(() => {
     try {
       const v = localStorage.getItem(TIME_FILTER_KEY);
-      const ok = ["NOW", "TODAY", "RECENT", "PAST"].includes(v);
-      return ok ? v : "PAST";
+      const n = Number(v);
+      return Number.isFinite(n) && n > 0 ? n : 336;
     } catch {
-      return "PAST";
+      return 336;
     }
   });
   const [subFilter, setSubFilter] = useState("All");
@@ -55,9 +55,9 @@ export default function MapView({
 
   useEffect(() => {
     try {
-      localStorage.setItem(TIME_FILTER_KEY, timeFilter);
+      localStorage.setItem(TIME_FILTER_KEY, String(timeHours));
     } catch {}
-  }, [timeFilter]);
+  }, [timeHours]);
 
   const stageRef = useRef(null);
   const [showSubcats, setShowSubcats] = useState(true);
@@ -159,7 +159,7 @@ export default function MapView({
       viewParams,
       mainFilter,
       subFilter,
-      timeFilter,
+      timeHours,
       searchQuery,
       clusterFocus,
       mainNewsOnly,
@@ -168,7 +168,7 @@ export default function MapView({
       forceFullPostId,
       markersRef,
       expandedElRef,
-      onAutoWidenTimeFilter: (next) => setTimeFilter(next),
+      onAutoWidenTimeFilter: () => setTimeHours(336),
       onSelectPost,
       username,
     });
@@ -312,8 +312,8 @@ export default function MapView({
   }, [subFilter, mainFilter]);
 
   useEffect(() => {
-    trackEvent("filter_time_change", { filter: timeFilter });
-  }, [timeFilter]);
+    trackEvent("filter_time_change", { hours: timeHours });
+  }, [timeHours]);
 
   useEffect(() => {
     if (queryPostRef.current) return;
@@ -627,7 +627,7 @@ export default function MapView({
       setSearchQuery("");
       setMainFilter("All");
       setSubFilter("All");
-      setTimeFilter("PAST"); // Show all time periods
+      setTimeHours(336); // 2 weeks
 
       const postId = Number(raw?.post_id ?? raw?.id ?? item?.id ?? 0);
       const rawUrl = raw?.url || item?.url || "";
@@ -748,7 +748,7 @@ export default function MapView({
     if (q) {
       setMainFilter("All");
       setSubFilter("All");
-      setTimeFilter("PAST");
+      setTimeHours(336);
     }
   };
 
@@ -762,7 +762,7 @@ export default function MapView({
     if (query.trim()) {
       setMainFilter("All");
       setSubFilter("All");
-      setTimeFilter("PAST"); // Show all time periods
+      setTimeHours(336); // 2 weeks
     }
   };
 
@@ -1254,8 +1254,8 @@ export default function MapView({
 
         <div className="map-overlay map-overlay-left">
           <TimeFilterButtons
-            active={timeFilter}
-            onSelect={(code) => setTimeFilter(code)}
+            activeHours={timeHours}
+            onSelect={(hours) => setTimeHours(hours)}
           />
         </div>
 
diff --git a/src/components/Map/mapFilter.js b/src/components/Map/mapFilter.js
index 7534d98..c71ffd8 100644
--- a/src/components/Map/mapFilter.js
+++ b/src/components/Map/mapFilter.js
@@ -54,14 +54,12 @@ function parseCreatedAt(createdAt) {
   return Number.isNaN(d.getTime()) ? null : d;
 }
 
-export function matchesTimeFilter(createdAt, timeFilter) {
-  if (!timeFilter) return true;
-  if (timeFilter === "PAST") return true;
+export function matchesTimeFilter(createdAt, timeHours) {
+  const hours = Number(timeHours);
+  if (!Number.isFinite(hours) || hours <= 0) return true;
 
   const d = parseCreatedAt(createdAt);
-  if (!d) {
-    return timeFilter !== "NOW";
-  }
+  if (!d) return false;
 
   const now = Date.now();
   const diffMs = now - d.getTime();
@@ -69,20 +67,7 @@ export function matchesTimeFilter(createdAt, timeFilter) {
   if (diffMs < 0) return false;
 
   const diffHours = diffMs / 3600000;
-  const diffDays = diffMs / 86400000;
-
-  switch (timeFilter) {
-    case "NOW":
-      return diffHours <= 2;
-    case "TODAY":
-      return diffHours <= 24;
-    case "RECENT":
-      return diffHours <= 72;
-    case "PAST":
-      return diffDays <= 15;
-    default:
-      return true;
-  }
+  return diffHours <= hours;
 }
 
 export function effectivePostTime(post) {
diff --git a/src/components/Map/usePostsEngine.js b/src/components/Map/usePostsEngine.js
index f3cc680..3ec8387 100644
--- a/src/components/Map/usePostsEngine.js
+++ b/src/components/Map/usePostsEngine.js
@@ -360,7 +360,7 @@ export function usePostsEngine({
   viewParams,
   mainFilter,
   subFilter,
-  timeFilter,
+  timeHours,
   searchQuery,
   clusterFocus,
   mainNewsOnly,
@@ -375,7 +375,7 @@ export function usePostsEngine({
   theme = "blue",
 }) {
   const allPostsRef = useRef([]);
-  const lastFetchRef = useRef({ center: null, radiusKm: null, filterKey: "", timeFilter: "", bounds: null });
+  const lastFetchRef = useRef({ center: null, radiusKm: null, filterKey: "", timeHours: 0, bounds: null });
   const pendingFilterRef = useRef("");
   const requestSeqRef = useRef(0);
   const delayedFetchRef = useRef(null);
@@ -433,7 +433,7 @@ export function usePostsEngine({
   useEffect(() => {
     const map = mapRef.current;
     replacePoolRef.current = true;
-    pendingFilterRef.current = `${mainFilter}|${subFilter}|${timeFilter}`;
+    pendingFilterRef.current = `${mainFilter}|${subFilter}|${timeHours}`;
     if (map) {
       map.__swForceFetchAt = Date.now();
       setTimeout(() => {
@@ -442,7 +442,7 @@ export function usePostsEngine({
         } catch {}
       }, 60);
     }
-  }, [mainFilter, subFilter, timeFilter, mapRef]);
+  }, [mainFilter, subFilter, timeHours, mapRef]);
 
   const priorityOpts = {
     maxFullCards: 15,
@@ -861,7 +861,7 @@ export function usePostsEngine({
           if (pc !== catCode) return false;
         }
         if (!matchesSubFilter(p, subFilter)) return false;
-        const skipTimeFilter = lastFetchRef.current?.timeFilter === tf;
+        const skipTimeFilter = lastFetchRef.current?.timeHours === tf;
         if (!skipTimeFilter && !matchesTimeFilter(effectivePostTime(p), tf)) return false;
         if (!searchResultsRef.current && !matchesSearch(p, searchQuery)) return false;
         return true;
@@ -932,8 +932,8 @@ export function usePostsEngine({
   // On filter/search changes: recompute + sync (NO clear-all rebuild)
   useEffect(() => {
     if (pendingFilterRef.current) return;
-    refreshVisibleAndMarkers(timeFilter);
-  }, [timeFilter, mainFilter, subFilter, searchQuery, clusterFocus, refreshVisibleAndMarkers]);
+    refreshVisibleAndMarkers(timeHours);
+  }, [timeHours, mainFilter, subFilter, searchQuery, clusterFocus, refreshVisibleAndMarkers]);
 
   useEffect(() => {
     if (!clustersEnabled) return;
@@ -941,14 +941,14 @@ export function usePostsEngine({
     if (Array.isArray(clusterFocus.posts) && clusterFocus.posts.length > 0) {
       allPostsRef.current = clusterFocus.posts;
     }
-    refreshVisibleAndMarkers(timeFilter, true);
-  }, [clusterFocus, timeFilter, refreshVisibleAndMarkers, clustersEnabled]);
+    refreshVisibleAndMarkers(timeHours, true);
+  }, [clusterFocus, timeHours, refreshVisibleAndMarkers, clustersEnabled]);
 
   // On view change: re-filter markers/cards to current bounds even without fetch
   useEffect(() => {
     if (pendingFilterRef.current) return;
-    refreshVisibleAndMarkers(timeFilter);
-  }, [viewParams, refreshVisibleAndMarkers, timeFilter]);
+    refreshVisibleAndMarkers(timeHours);
+  }, [viewParams, refreshVisibleAndMarkers, timeHours]);
 
   // Fetch on view change (moveend)
   useEffect(() => {
@@ -985,7 +985,7 @@ export function usePostsEngine({
       const [lng, lat] = resolvedView.center;
       const radiusKm = resolvedView.radiusKm || 750;
       const filterKey = `${mainFilter}|${subFilter}`;
-      const currentKey = `${filterKey}|${timeFilter}`;
+      const currentKey = `${filterKey}|${timeHours}`;
       const reqId = ++requestSeqRef.current;
       let bounds = null;
       try {
@@ -1009,7 +1009,7 @@ export function usePostsEngine({
         mapObj.__swForceFetchAt = 0;
       }
 
-      if (!forceFetch && last.center && last.filterKey === filterKey && last.timeFilter === timeFilter) {
+      if (!forceFetch && last.center && last.filterKey === filterKey && last.timeHours === timeHours) {
         const [lastLng, lastLat] = last.center;
         const distKm = haversineKm(lastLat, lastLng, lat, lng);
 
@@ -1061,7 +1061,7 @@ export function usePostsEngine({
           zoom,
           bounds,
           username: username || undefined,
-          time_filter: timeFilter || undefined,
+          time_hours: timeHours || undefined,
           category: catCode || undefined,
           sub_category: subCatParam || undefined,
         });
@@ -1080,7 +1080,7 @@ export function usePostsEngine({
             const normalized = normalizePostId(p);
             const key = getPostKey(normalized);
             if (!key) continue;
-            if (timeFilter) normalized._swTimeFilter = timeFilter;
+            if (timeHours) normalized._swTimeHours = timeHours;
             const prior = byId.get(key);
             if (prior) {
               byId.set(key, { ...prior, ...normalized });
@@ -1092,14 +1092,14 @@ export function usePostsEngine({
 
         allPostsRef.current = prunePosts(Array.from(byId.values()), [lng, lat], MAX_POOL_POSTS, bounds);
         replacePoolRef.current = false;
-        lastFetchRef.current = { center: [...resolvedView.center], radiusKm, filterKey, timeFilter, bounds };
+        lastFetchRef.current = { center: [...resolvedView.center], radiusKm, filterKey, timeHours, bounds };
         if (pendingFilterRef.current === currentKey) {
           pendingFilterRef.current = "";
         }
 
         // Smooth update: sync markers/clusters + wall without clearing everything
-        refreshVisibleAndMarkers(timeFilter);
-        const visible = computeVisible(timeFilter);
+        refreshVisibleAndMarkers(timeHours);
+        const visible = computeVisible(timeHours);
         const now = Date.now();
         if (now - analyticsDebounceRef.current > 4000) {
           analyticsDebounceRef.current = now;
@@ -1108,20 +1108,20 @@ export function usePostsEngine({
             radius_km: Math.round(radiusKm || 0),
             zoom: typeof zoom === "number" ? Math.round(zoom * 10) / 10 : undefined,
             filter: filterKey,
-            time_filter: timeFilter || "",
+            time_hours: timeHours || 0,
           });
         }
         if (
           !autoWidenRef.current &&
-          timeFilter &&
-          timeFilter !== "PAST" &&
+          timeHours &&
+          timeHours > 0 &&
           Array.isArray(newPosts) &&
           newPosts.length > 0 &&
           visible.length === 0
         ) {
           autoWidenRef.current = true;
           if (typeof onAutoWidenTimeFilter === "function") {
-            onAutoWidenTimeFilter("PAST");
+            onAutoWidenTimeFilter(336);
           }
         }
 
@@ -1167,7 +1167,7 @@ export function usePostsEngine({
         delayedFetchRef.current = null;
       }
     };
-  }, [viewParams, mapReady, mainFilter, subFilter, mapRef, timeFilter, expandedElRef, refreshVisibleAndMarkers, computeVisible, onAutoWidenTimeFilter, syncMarkers, username]);
+  }, [viewParams, mapReady, mainFilter, subFilter, mapRef, timeHours, expandedElRef, refreshVisibleAndMarkers, computeVisible, onAutoWidenTimeFilter, syncMarkers, username]);
 
   useEffect(() => {
     const q = (searchQuery || "").trim();
@@ -1215,7 +1215,7 @@ export function usePostsEngine({
       } catch {}
       allPostsRef.current = prunePosts(normalized, [lon, lat], MAX_POOL_POSTS, bounds);
         searchResultsRef.current = true;
-        refreshVisibleAndMarkers(timeFilter);
+        refreshVisibleAndMarkers(timeHours);
         trackEvent("search_filter_apply", {
           query_len: q.length,
           results: posts.length,
@@ -1228,7 +1228,7 @@ export function usePostsEngine({
     return () => {
       cancelled = true;
     };
-  }, [searchQuery, viewParams, mapRef, refreshVisibleAndMarkers, timeFilter]);
+  }, [searchQuery, viewParams, mapRef, refreshVisibleAndMarkers, timeHours]);
 
   useEffect(() => {
     if ((searchQuery || "").trim()) return;
@@ -1243,13 +1243,13 @@ export function usePostsEngine({
       if (!clusterModeRef.current) return;
       ensureClusterLayers(map);
       setClusterVisibility(map, true);
-      const { clusterPosts } = splitForClusters(computeVisible(timeFilter));
+      const { clusterPosts } = splitForClusters(computeVisible(timeHours));
       const clusterRemainder = clusterPosts.slice(SIMPLE_MARKER_LIMIT);
       updateClusterData(map, clusterRemainder);
     };
     map.on("styledata", handleStyle);
     return () => map.off("styledata", handleStyle);
-  }, [mapRef, ensureClusterLayers, setClusterVisibility, updateClusterData, computeVisible, timeFilter, splitForClusters, clustersEnabled]);
+  }, [mapRef, ensureClusterLayers, setClusterVisibility, updateClusterData, computeVisible, timeHours, splitForClusters, clustersEnabled]);
 
   const handleIncomingPost = useCallback(
     (p) => {
@@ -1278,11 +1278,11 @@ export function usePostsEngine({
         if (pc !== catCode) return;
       }
       if (!matchesSubFilter(p, subFilter)) return;
-      if (!matchesTimeFilter(effectivePostTime(p), timeFilter)) return;
+      if (!matchesTimeFilter(effectivePostTime(p), timeHours)) return;
       if (!matchesSearch(p, searchQuery)) return;
 
       if (clusterModeRef.current) {
-        refreshVisibleAndMarkers(timeFilter);
+        refreshVisibleAndMarkers(timeHours);
         return;
       }
 
@@ -1295,7 +1295,7 @@ export function usePostsEngine({
 
       setVisiblePosts((current) => [normalized, ...current]);
     },
-    [mainFilter, subFilter, timeFilter, searchQuery, mapRef, markersRef, expandedElRef, theme, refreshVisibleAndMarkers]
+    [mainFilter, subFilter, timeHours, searchQuery, mapRef, markersRef, expandedElRef, theme, refreshVisibleAndMarkers]
   );
 
   const handlePostUpdate = useCallback(
@@ -1338,7 +1338,7 @@ export function usePostsEngine({
       }
       if (changed) {
         allPostsRef.current = updated;
-        refreshVisibleAndMarkers(timeFilter, true);
+        refreshVisibleAndMarkers(timeHours, true);
       }
 
       try {
@@ -1381,7 +1381,7 @@ export function usePostsEngine({
         }
       } catch {}
     },
-    [mapRef, refreshVisibleAndMarkers, timeFilter]
+    [mapRef, refreshVisibleAndMarkers, timeHours]
   );
 
   return { status, visiblePosts, loadingPosts, loadError, handleIncomingPost, handlePostUpdate };