diff --git a/lib/libimhex/CMakeLists.txt b/lib/libimhex/CMakeLists.txt
index 49ab76023..1bdfe8467 100644
--- a/lib/libimhex/CMakeLists.txt
+++ b/lib/libimhex/CMakeLists.txt
@@ -133,6 +133,9 @@ endif ()
 
 addDefineToSource(source/api/imhex_api.cpp "IMHEX_VERSION=\"${IMHEX_VERSION_STRING}\"")
 
+string(TIMESTAMP IMHEX_BUILD_DATE UTC)
+addDefineToSource(source/api/imhex_api.cpp "IMHEX_BUILD_DATE=\"${IMHEX_BUILD_DATE}\"")
+
 enableUnityBuild(libimhex)
 setupCompilerFlags(libimhex)
 
diff --git a/lib/libimhex/include/hex/api/imhex_api.hpp b/lib/libimhex/include/hex/api/imhex_api.hpp
index c9bf81f8a..04ce4f4b9 100644
--- a/lib/libimhex/include/hex/api/imhex_api.hpp
+++ b/lib/libimhex/include/hex/api/imhex_api.hpp
@@ -6,6 +6,7 @@
 #include <hex/helpers/utils.hpp>
 #include <hex/helpers/fs.hpp>
 
+#include <chrono>
 #include <functional>
 #include <optional>
 #include <span>
@@ -654,6 +655,12 @@ EXPORT_MODULE namespace hex {
              */
             std::string getCommitBranch();
 
+            /**
+             * @brief Gets the time ImHex was built
+             * @return The time ImHex was built
+             */
+            std::optional<std::chrono::system_clock::time_point> getBuildTime();
+
             /**
              * @brief Checks if ImHex was built in debug mode
              * @return True if ImHex was built in debug mode, false otherwise
diff --git a/lib/libimhex/source/api/imhex_api.cpp b/lib/libimhex/source/api/imhex_api.cpp
index 8bef2903f..332a09375 100644
--- a/lib/libimhex/source/api/imhex_api.cpp
+++ b/lib/libimhex/source/api/imhex_api.cpp
@@ -883,7 +883,7 @@ namespace hex {
         }
 
         SemanticVersion getImHexVersion() {
-            #if defined IMHEX_VERSION
+            #if defined(IMHEX_VERSION)
                 static auto version = SemanticVersion(IMHEX_VERSION);
                 return version;
             #else
@@ -892,7 +892,7 @@ namespace hex {
         }
 
         std::string getCommitHash(bool longHash) {
-            #if defined GIT_COMMIT_HASH_LONG
+            #if defined(GIT_COMMIT_HASH_LONG)
                 if (longHash) {
                     return GIT_COMMIT_HASH_LONG;
                 } else {
@@ -905,13 +905,21 @@ namespace hex {
         }
 
         std::string getCommitBranch() {
-            #if defined GIT_BRANCH
+            #if defined(GIT_BRANCH)
                 return GIT_BRANCH;
             #else
                 return "Unknown";
             #endif
         }
 
+        std::optional<std::chrono::system_clock::time_point> getBuildTime() {
+            #if defined(IMHEX_BUILD_DATE)
+                return hex::parseTime("%Y-%m-%dT%H:%M:%SZ", IMHEX_BUILD_DATE);
+            #else
+                return std::nullopt;
+            #endif
+        }
+
         bool isDebugBuild() {
             #if defined DEBUG
                 return true;
diff --git a/plugins/builtin/source/content/init_tasks.cpp b/plugins/builtin/source/content/init_tasks.cpp
index 804b9bf1e..a792ce1db 100644
--- a/plugins/builtin/source/content/init_tasks.cpp
+++ b/plugins/builtin/source/content/init_tasks.cpp
@@ -51,11 +51,16 @@ namespace hex::plugin::builtin {
                     }
 
                     // Check if the response is valid
-                    if (!releases.contains("published_at") || !releases["published_at"].is_string())
+                    if (!releases.contains("assets") || !releases["assets"].is_array())
                         return;
 
-                    const auto nightlyUpdateTime = hex::parseTime("%FT%TZ", releases["published_at"].get<std::string>());
-                    if (nightlyUpdateTime.has_value() && *nightlyUpdateTime > std::chrono::system_clock::now()) {
+                    const auto firstAsset = releases["assets"].front();
+                    if (!firstAsset.is_object() || !firstAsset.contains("updated_at"))
+                        return;
+
+                    const auto nightlyUpdateTime = hex::parseTime("%Y-%m-%dT%H:%M:%SZ", firstAsset["updated_at"].get<std::string>());
+                    const auto imhexBuildTime = ImHexApi::System::getBuildTime();
+                    if (nightlyUpdateTime.has_value() && imhexBuildTime.has_value() && *nightlyUpdateTime > *imhexBuildTime) {
                         updateString = "Nightly";
                     }
                 } else {