diff --git a/geg/os/gtime/gtime_format.go b/geg/os/gtime/gtime_format.go
index 33c726d61..1ebf14a52 100644
--- a/geg/os/gtime/gtime_format.go
+++ b/geg/os/gtime/gtime_format.go
@@ -9,15 +9,11 @@ func main() {
     formats := []string{
         "Y-m-d H:i:s.u",
         "D M d H:i:s T O Y",
-        // 可以使用转义字符转移有意义的格式字母
         "\\T\\i\\m\\e \\i\\s: h:i:s a",
-        // format格式不支持标准库格式混合，相互隔离
         "2006-01-02T15:04:05.000000000Z07:00",
     }
     t := gtime.Now()
     for _, f := range formats {
-        fmt.Println(f)
         fmt.Println(t.Format(f))
-        fmt.Println()
     }
 }
diff --git a/geg/os/gtime/gtime_func.go b/geg/os/gtime/gtime_func.go
new file mode 100644
index 000000000..e214733d6
--- /dev/null
+++ b/geg/os/gtime/gtime_func.go
@@ -0,0 +1,15 @@
+package main
+
+import (
+    "fmt"
+    "gitee.com/johng/gf/g/os/gtime"
+)
+
+func main() {
+    fmt.Println("Date       :", gtime.Date())
+    fmt.Println("Datetime   :", gtime.Datetime())
+    fmt.Println("Second     :", gtime.Second())
+    fmt.Println("Millisecond:", gtime.Millisecond())
+    fmt.Println("Microsecond:", gtime.Microsecond())
+    fmt.Println("Nanosecond :", gtime.Nanosecond())
+}
diff --git a/geg/os/gtime/gtime_layout.go b/geg/os/gtime/gtime_layout.go
index 055e83026..309949a98 100644
--- a/geg/os/gtime/gtime_layout.go
+++ b/geg/os/gtime/gtime_layout.go
@@ -14,8 +14,6 @@ func main() {
     }
     t := gtime.Now()
     for _, f := range formats {
-        fmt.Println(f)
         fmt.Println(t.Layout(f))
-        fmt.Println()
     }
 }
diff --git a/geg/os/gtime/gtime_linkop.go b/geg/os/gtime/gtime_linkop.go
new file mode 100644
index 000000000..5fadaba3f
--- /dev/null
+++ b/geg/os/gtime/gtime_linkop.go
@@ -0,0 +1,22 @@
+package main
+
+import (
+    "fmt"
+    "gitee.com/johng/gf/g/os/gtime"
+    "time"
+)
+
+func main() {
+    // 去年今日
+    fmt.Println(gtime.Now().AddDate(-1, 0, 0).Format("Y-m-d"))
+
+    // 去年今日，UTC时间
+    fmt.Println(gtime.Now().AddDate(-1, 0, 0).Format("Y-m-d H:i:s T"))
+    fmt.Println(gtime.Now().AddDate(-1, 0, 0).UTC().Format("Y-m-d H:i:s T"))
+
+    // 下个月1号凌晨0点整
+    fmt.Println(gtime.Now().AddDate(0, 1, 0).Format("Y-m-d 00:00:00"))
+
+    // 2个小时前
+    fmt.Println(gtime.Now().Add(-time.Hour).Format("Y-m-d H:i:s"))
+}