diff --git a/include/record_manager.hpp b/include/record_manager.hpp
index a01ad53..88b0903 100644
--- a/include/record_manager.hpp
+++ b/include/record_manager.hpp
@@ -37,6 +37,9 @@ class RecordManager
     // 根据 segmentId 获取可播放文件列表
     RecordSegment getSegment(const std::string& segmentId);
 
+    static int64_t toMsTimestamp(const std::string& s);
+    static std::string toReadable(int64_t ms);
+
     // 调试打印全部索引
     void dumpIndex() const;
 
diff --git a/src/main.cpp b/src/main.cpp
index cbc0193..34739cc 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -51,15 +51,12 @@ int main()
     // 测试一次查询：你可以换成真实时间戳
     std::cout << "\n=== 测试 querySegments() ===\n";
 
-    // 用你的 AHD1_main 做示例
-    std::string stream = "AHD1_main";
-
     // 随便选一个时间区间，比如 2025-11-13 10:23:00 ~ 11:00:00
     // 你可以换成真实值
-    long long t1 = 1731464600000;
-    long long t2 = 1731467400000;
+    int64_t start = RecordManager::toMsTimestamp("2025-11-13 10:00:00");
+    int64_t end = RecordManager::toMsTimestamp("2025-11-13 14:30:00");
 
-    auto segments = rm.querySegments(stream, t1, t2);
+    auto segments = rm.querySegments("AHD1_main", start, end);
 
     std::cout << "找到录像段数量 = " << segments.size() << "\n";
 
diff --git a/src/record_manager.cpp b/src/record_manager.cpp
index da9bea9..6da4e28 100644
--- a/src/record_manager.cpp
+++ b/src/record_manager.cpp
@@ -194,6 +194,26 @@ RecordSegment RecordManager::getSegment(const std::string& segmentId)
     return {};
 }
 
+int64_t RecordManager::toMsTimestamp(const std::string& s)
+{
+    std::tm tm = {};
+    char* ret = strptime(s.c_str(), "%Y-%m-%d %H:%M:%S", &tm);
+    if (!ret) return -1;
+
+    time_t t = mktime(&tm);  // local time (UTC+8)
+    return static_cast<int64_t>(t) * 1000;
+}
+
+std::string RecordManager::toReadable(int64_t ms)
+{
+    time_t t = ms / 1000;
+    std::tm* tm = localtime(&t);
+
+    char buf[32];
+    strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", tm);
+    return buf;
+}
+
 void RecordManager::dumpIndex() const
 {
     std::cout << "\n=== dumpIndex() ===\n";