diff --git a/src/services/worker/SearchManager.ts b/src/services/worker/SearchManager.ts
index e4ca430e..45c7e2d7 100644
--- a/src/services/worker/SearchManager.ts
+++ b/src/services/worker/SearchManager.ts
@@ -180,15 +180,37 @@ export class SearchManager {
       logger.debug('SEARCH', 'ChromaDB returned semantic matches', { matchCount: chromaResults.ids.length });
 
       if (chromaResults.ids.length > 0) {
-        // Step 2: Filter by recency (90 days)
-        const ninetyDaysAgo = Date.now() - SEARCH_CONSTANTS.RECENCY_WINDOW_MS;
+        // Step 2: Filter by date range
+        // Use user-provided dateRange if available, otherwise fall back to 90-day recency window
+        const { dateRange } = options;
+        let startEpoch: number | undefined;
+        let endEpoch: number | undefined;
+
+        if (dateRange) {
+          if (dateRange.start) {
+            startEpoch = typeof dateRange.start === 'number'
+              ? dateRange.start
+              : new Date(dateRange.start).getTime();
+          }
+          if (dateRange.end) {
+            endEpoch = typeof dateRange.end === 'number'
+              ? dateRange.end
+              : new Date(dateRange.end).getTime();
+          }
+        } else {
+          // Default: 90-day recency window
+          startEpoch = Date.now() - SEARCH_CONSTANTS.RECENCY_WINDOW_MS;
+        }
+
         const recentMetadata = chromaResults.metadatas.map((meta, idx) => ({
           id: chromaResults.ids[idx],
           meta,
-          isRecent: meta && meta.created_at_epoch > ninetyDaysAgo
+          isRecent: meta && meta.created_at_epoch != null
+            && (!startEpoch || meta.created_at_epoch >= startEpoch)
+            && (!endEpoch || meta.created_at_epoch <= endEpoch)
         })).filter(item => item.isRecent);
 
-        logger.debug('SEARCH', 'Results within 90-day window', { count: recentMetadata.length });
+        logger.debug('SEARCH', dateRange ? 'Results within user date range' : 'Results within 90-day window', { count: recentMetadata.length });
 
         // Step 3: Categorize IDs by document type
         const obsIds: number[] = [];