diff --git a/data_test.go b/data_test.go
index 79a3400..a808ce5 100644
--- a/data_test.go
+++ b/data_test.go
@@ -776,6 +776,14 @@ var tesUrl39 = "https://www.baidu.com/"
 var tesUrl40 = "https://www.w3.org/"
 var tesUrl41 = "http://test.loc/imgs/1234/abc/230223/d319bec8fbd9e64.png?jwt=eyJhbGciOiJIUzI1Nc8&mode=fit&width=100&height=100"
 
+// 时长
+var testDuration0 = 0
+var testDuration1 = 128 * time.Hour
+var testDuration2 = 45 * time.Minute
+var testDuration3 = 23 * time.Second
+var testDuration4 = 86513.5
+var testDuration5 = (1354 * time.Hour) + (22 * time.Minute) + (13 * time.Second) + (55 * time.Millisecond) + (100 * time.Microsecond)
+
 // 下载文件
 var downloadfile01 = "./testdata/download/test001/file001"
 
diff --git a/time.go b/time.go
index c34bdff..c240d3e 100644
--- a/time.go
+++ b/time.go
@@ -2,6 +2,7 @@ package kgo
 
 import (
 	"errors"
+	"fmt"
 	"strings"
 	"time"
 )
@@ -364,3 +365,37 @@ func (kt *LkkTime) IsDate2time(str string) (bool, int64) {
 
 	return true, tim
 }
+
+// FormatDuration 格式化时长为字符串(如*h*m*s);其中t为时长,默认为秒;colon为是否使用冒号.
+func (kt *LkkTime) FormatDuration(t interface{}, colon bool) string {
+	var dr time.Duration
+	var res string
+
+	if v, ok := t.(time.Duration); ok {
+		dr = v
+	} else {
+		i := toInt(t)
+		dr = time.Second * time.Duration(i)
+	}
+
+	if colon {
+		h := dr / time.Hour
+		dr -= h * time.Hour
+		m := dr / time.Minute
+		dr -= m * time.Minute
+		s := dr / time.Second
+		res = fmt.Sprintf("%d:%02d:%02d", h, m, s)
+	} else {
+		s := dr.Round(time.Millisecond).String()
+		if strings.HasSuffix(s, "m0s") {
+			s = s[:len(s)-2]
+		}
+		if strings.HasSuffix(s, "h0m") {
+			s = s[:len(s)-2]
+		}
+
+		res = s
+	}
+
+	return res
+}
diff --git a/time_test.go b/time_test.go
index 91f9070..a05265e 100644
--- a/time_test.go
+++ b/time_test.go
@@ -489,3 +489,52 @@ func BenchmarkTime_IsDate2time(b *testing.B) {
 		_, _ = KTime.IsDate2time(strTime7)
 	}
 }
+
+func TestTime_FormatDuration(t *testing.T) {
+	var res1, res2 string
+
+	ds := []time.Duration{
+		testDuration1 + testDuration2 + testDuration3,
+		testDuration1 + testDuration2,
+		testDuration1 + testDuration3,
+		testDuration2 + testDuration3,
+		testDuration1,
+		testDuration2,
+		testDuration3,
+	}
+	for _, d := range ds {
+		res1 = KTime.FormatDuration(d, true)
+		assert.Contains(t, res1, ":")
+		res2 = KTime.FormatDuration(d, false)
+		assert.NotEmpty(t, res2)
+	}
+
+	res1 = KTime.FormatDuration(testDuration0, true)
+	res2 = KTime.FormatDuration(testDuration0, false)
+	assert.Equal(t, res1, "0:00:00")
+	assert.Equal(t, res2, "0s")
+
+	res1 = KTime.FormatDuration(testDuration4, true)
+	res2 = KTime.FormatDuration(testDuration4, false)
+	assert.Equal(t, res1, "24:01:53")
+	assert.Equal(t, res2, "24h1m53s")
+
+	res1 = KTime.FormatDuration(testDuration5, true)
+	res2 = KTime.FormatDuration(testDuration5, false)
+	assert.Equal(t, res1, "1354:22:13")
+	assert.Equal(t, res2, "1354h22m13.055s")
+}
+
+func BenchmarkTime_FormatDuration0(b *testing.B) {
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_ = KTime.FormatDuration(testDuration5, false)
+	}
+}
+
+func BenchmarkTime_FormatDuration1(b *testing.B) {
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_ = KTime.FormatDuration(testDuration5, true)
+	}
+}