diff --git a/core/components/time_util.hpp b/core/components/time_util.hpp
index 7c94952..949c497 100644
--- a/core/components/time_util.hpp
+++ b/core/components/time_util.hpp
@@ -22,19 +22,19 @@ using namespace chrono;
 template <class T>
 class T_TimeUtil {
  public:
-  time_point<T> zero() { return time_point<T>(nanoseconds(0)); }
-  time_point<T> now() { return move(T::now()); }
-  int64_t getus() { return duration_cast<microseconds>(T::now().time_since_epoch()).count(); }
-  int64_t gets() { return duration_cast<seconds>(T::now().time_since_epoch()).count(); }
-  int64_t getms() { return duration_cast<milliseconds>(T::now().time_since_epoch()).count(); }
-  int64_t geth() { return duration_cast<hours>(T::now().time_since_epoch()).count(); }
-  int64_t tpToMs(time_point<T> t) { return duration_cast<milliseconds>(t.time_since_epoch()).count(); }
-  int64_t tpToUs(time_point<T> t) { return duration_cast<microseconds>(t.time_since_epoch()).count(); }
-  int64_t tpToS(time_point<T> t) { return duration_cast<seconds>(t.time_since_epoch()).count(); }
-  int64_t dToMs(nanoseconds ns) { return duration_cast<milliseconds>(ns).count(); }
-  int64_t dToUs(nanoseconds ns) { return duration_cast<microseconds>(ns).count(); }
-  int64_t dToS(nanoseconds ns) { return duration_cast<seconds>(ns).count(); }
-  int64_t dToNs(nanoseconds ns) { return ns.count(); }
+  time_point<T>        zero() { return time_point<T>(nanoseconds(0)); }
+  time_point<T>        now() { return move(T::now()); }
+  int64_t              getus() { return duration_cast<microseconds>(T::now().time_since_epoch()).count(); }
+  int64_t              gets() { return duration_cast<seconds>(T::now().time_since_epoch()).count(); }
+  int64_t              getms() { return duration_cast<milliseconds>(T::now().time_since_epoch()).count(); }
+  int64_t              geth() { return duration_cast<hours>(T::now().time_since_epoch()).count(); }
+  int64_t              tpToMs(time_point<T> t) { return duration_cast<milliseconds>(t.time_since_epoch()).count(); }
+  int64_t              tpToUs(time_point<T> t) { return duration_cast<microseconds>(t.time_since_epoch()).count(); }
+  int64_t              tpToS(time_point<T> t) { return duration_cast<seconds>(t.time_since_epoch()).count(); }
+  int64_t              dToMs(nanoseconds ns) { return duration_cast<milliseconds>(ns).count(); }
+  int64_t              dToUs(nanoseconds ns) { return duration_cast<microseconds>(ns).count(); }
+  int64_t              dToS(nanoseconds ns) { return duration_cast<seconds>(ns).count(); }
+  int64_t              dToNs(nanoseconds ns) { return ns.count(); }
   inline time_point<T> msToTp(int64_t ms) {
     time_point<T> tp = time_point<T>(milliseconds(ms));
     return move(tp);
@@ -48,7 +48,7 @@ class T_TimeUtil {
   inline time_point<T> adds(int value) { return adds(T::now(), value); }
   inline time_point<T> addms(int value) { return addms(T::now(), value); }
   inline time_point<T> addus(int value) { return addus(T::now(), value); }
-  inline int64_t ms2us(int64_t ms) { return ms * 1000; }
+  inline int64_t       ms2us(int64_t ms) { return ms * 1000; }
   /**
    * @brief 计算流逝时间
    */
@@ -68,11 +68,16 @@ class T_TimeUtil {
   int64_t countdownTimeNs(time_point<T> endtime) { return dToNs(endtime - T::now()); }
 };
 
-typedef T_TimeUtil<system_clock> tu_sys;
-typedef T_TimeUtil<steady_clock> tu_steady;
+typedef T_TimeUtil<system_clock> tu_sys;     // not use in future
+typedef T_TimeUtil<steady_clock> tu_steady;  // not use in future
+typedef time_point<system_clock> tp_sys;     // not use in future
+typedef time_point<steady_clock> tp_steady;  // not use in future
 
-typedef time_point<system_clock> tp_sys;
-typedef time_point<steady_clock> tp_steady;
+// new api name
+typedef T_TimeUtil<system_clock> zsystem_clock;
+typedef T_TimeUtil<steady_clock> zsteady_clock;
 
+typedef time_point<system_clock> zsystem_tp;
+typedef time_point<steady_clock> zsteady_tp;
 };  // namespace core
 }  // namespace iflytop