diff --git a/include/game/game_handler.hpp b/include/game/game_handler.hpp
index e3840fe2..97a023ab 100644
--- a/include/game/game_handler.hpp
+++ b/include/game/game_handler.hpp
@@ -1340,6 +1340,11 @@ public:
     void setAchievementEarnedCallback(AchievementEarnedCallback cb) { achievementEarnedCallback_ = std::move(cb); }
     const std::unordered_set<uint32_t>& getEarnedAchievements() const { return earnedAchievements_; }
     const std::unordered_map<uint32_t, uint64_t>& getCriteriaProgress() const { return criteriaProgress_; }
+    /// Returns the WoW PackedTime earn date for an achievement, or 0 if unknown.
+    uint32_t getAchievementDate(uint32_t id) const {
+        auto it = achievementDates_.find(id);
+        return (it != achievementDates_.end()) ? it->second : 0u;
+    }
     /// Returns the name of an achievement by ID, or empty string if unknown.
     const std::string& getAchievementName(uint32_t id) const {
         auto it = achievementNameCache_.find(id);
@@ -2498,6 +2503,8 @@ private:
     void loadAchievementNameCache();
     // Set of achievement IDs earned by the player (populated from SMSG_ALL_ACHIEVEMENT_DATA)
     std::unordered_set<uint32_t> earnedAchievements_;
+    // Earn dates: achievementId → WoW PackedTime (from SMSG_ACHIEVEMENT_EARNED / SMSG_ALL_ACHIEVEMENT_DATA)
+    std::unordered_map<uint32_t, uint32_t> achievementDates_;
     // Criteria progress: criteriaId → current value (from SMSG_CRITERIA_UPDATE)
     std::unordered_map<uint32_t, uint64_t> criteriaProgress_;
     void handleAllAchievementData(network::Packet& packet);
diff --git a/src/game/game_handler.cpp b/src/game/game_handler.cpp
index cd373518..b8205e8a 100644
--- a/src/game/game_handler.cpp
+++ b/src/game/game_handler.cpp
@@ -20127,7 +20127,7 @@ void GameHandler::handleAchievementEarned(network::Packet& packet) {
 
     uint64_t guid          = packet.readUInt64();
     uint32_t achievementId = packet.readUInt32();
-    /*uint32_t date =*/ packet.readUInt32();  // PackedTime — not displayed
+    uint32_t earnDate      = packet.readUInt32();  // WoW PackedTime bitfield
 
     loadAchievementNameCache();
     auto nameIt = achievementNameCache_.find(achievementId);
@@ -20146,6 +20146,7 @@ void GameHandler::handleAchievementEarned(network::Packet& packet) {
         addSystemChatMessage(buf);
 
         earnedAchievements_.insert(achievementId);
+        achievementDates_[achievementId] = earnDate;
         if (achievementEarnedCallback_) {
             achievementEarnedCallback_(achievementId, achName);
         }
@@ -20186,14 +20187,16 @@ void GameHandler::handleAchievementEarned(network::Packet& packet) {
 void GameHandler::handleAllAchievementData(network::Packet& packet) {
     loadAchievementNameCache();
     earnedAchievements_.clear();
+    achievementDates_.clear();
 
     // Parse achievement entries (id + packedDate pairs, sentinel 0xFFFFFFFF)
     while (packet.getSize() - packet.getReadPos() >= 4) {
         uint32_t id = packet.readUInt32();
         if (id == 0xFFFFFFFF) break;
         if (packet.getSize() - packet.getReadPos() < 4) break;
-        /*uint32_t date =*/ packet.readUInt32();
+        uint32_t date = packet.readUInt32();
         earnedAchievements_.insert(id);
+        achievementDates_[id] = date;
     }
 
     // Parse criteria block: id + uint64 counter + uint32 date + uint32 flags, sentinel 0xFFFFFFFF
diff --git a/src/ui/game_screen.cpp b/src/ui/game_screen.cpp
index 30ff4cba..415fab37 100644
--- a/src/ui/game_screen.cpp
+++ b/src/ui/game_screen.cpp
@@ -16038,7 +16038,22 @@ void GameScreen::renderAchievementWindow(game::GameHandler& gameHandler) {
                     ImGui::TextUnformatted(display.c_str());
                     if (ImGui::IsItemHovered()) {
                         ImGui::BeginTooltip();
-                        ImGui::Text("ID: %u", id);
+                        ImGui::Text("Achievement ID: %u", id);
+                        uint32_t packed = gameHandler.getAchievementDate(id);
+                        if (packed != 0) {
+                            // WoW PackedTime: year[31:25] month[24:21] day[20:17] weekday[16:14] hour[13:9] minute[8:3]
+                            int minute  = (packed >>  3) & 0x3F;
+                            int hour    = (packed >>  9) & 0x1F;
+                            int day     = (packed >> 17) & 0x1F;
+                            int month   = (packed >> 21) & 0x0F;
+                            int year    = ((packed >> 25) & 0x7F) + 2000;
+                            static const char* kMonths[12] = {
+                                "Jan","Feb","Mar","Apr","May","Jun",
+                                "Jul","Aug","Sep","Oct","Nov","Dec"
+                            };
+                            const char* mname = (month >= 1 && month <= 12) ? kMonths[month - 1] : "?";
+                            ImGui::Text("Earned: %s %d, %d  %02d:%02d", mname, day, year, hour, minute);
+                        }
                         ImGui::EndTooltip();
                     }
                     ImGui::PopID();