diff --git a/README.MD b/README.MD
index ab7dc17ab..bf4583028 100644
--- a/README.MD
+++ b/README.MD
@@ -49,13 +49,13 @@ import "gitee.com/johng/gf/g/xxx"
     │   │   ├── gfilepool        文件指针池
     │   │   ├── gfilespace       文件碎片管理
     │   │   ├── glog             日志管理
-    │   │   └── gmmap            MMAP文件内存映射
+    │   │   ├── gmmap            MMAP文件内存映射
+    │   │   └── gtime            时间管理
     │   │   
     │   └── util             【常用工具】
     │       ├── gpage            分页
     │       ├── grand            随机数
     │       ├── gregx            正则表达式
-    │       ├── gtime            时间管理
     │       └── gutil            其他工具
     │   
     ├── geg              【框架示例】
diff --git a/g/os/gcache/gcache.go b/g/os/gcache/gcache.go
index 98123abe5..0f1c99b34 100644
--- a/g/os/gcache/gcache.go
+++ b/g/os/gcache/gcache.go
@@ -3,7 +3,7 @@ package gcache
 import (
     "sync"
     "time"
-    "gitee.com/johng/gf/g/util/gtime"
+    "gitee.com/johng/gf/g/os/gtime"
     "gitee.com/johng/gf/g/encoding/ghash"
 )
 
diff --git a/g/os/gfilepool/gfilepool.go b/g/os/gfilepool/gfilepool.go
index 960b26283..d06c51090 100644
--- a/g/os/gfilepool/gfilepool.go
+++ b/g/os/gfilepool/gfilepool.go
@@ -4,7 +4,7 @@ import (
     "os"
     "time"
     "strconv"
-    "gitee.com/johng/gf/g/util/gtime"
+    "gitee.com/johng/gf/g/os/gtime"
     "gitee.com/johng/gf/g/container/gmap"
     "gitee.com/johng/gf/g/container/glist"
     "sync/atomic"
diff --git a/g/util/gtime/time.go b/g/os/gtime/time.go
similarity index 100%
rename from g/util/gtime/time.go
rename to g/os/gtime/time.go
diff --git a/geg/other/test.go b/geg/other/test.go
index 50e595a64..fff367cb3 100644
--- a/geg/other/test.go
+++ b/geg/other/test.go
@@ -4,6 +4,7 @@ import (
     "sync"
     "fmt"
     "strconv"
+    "time"
 )