diff --git a/db/db.go b/db/db.go
index 4f4feb5..3765edb 100644
--- a/db/db.go
+++ b/db/db.go
@@ -1,11 +1,11 @@
 package db
 
 import (
+	"errors"
 	"fmt"
 	"strings"
-	"time"
 
-	"github.com/gxxgle/go-utils/env"
+	"github.com/gxxgle/go-utils/time"
 
 	"github.com/doug-martin/goqu/v9"
 	_ "github.com/doug-martin/goqu/v9/dialect/mysql"
@@ -18,6 +18,10 @@ const (
 	MySQL = "mysql"
 )
 
+var (
+	ErrNotFound = errors.New("record not found")
+)
+
 // default config
 var (
 	DefaultRetries    = 5
@@ -54,7 +58,7 @@ func OpenDB(cfg *Config) (*xorm.Engine, error) {
 		return nil, err
 	}
 
-	db.DatabaseTZ = env.Local
+	db.DatabaseTZ = time.Local
 	db.ShowSQL(cfg.Debug)
 	db.SetConnMaxLifetime(time.Minute * 30)
 
diff --git a/env/env.go b/env/env.go
deleted file mode 100644
index a881e6b..0000000
--- a/env/env.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package env
-
-import (
-	"time"
-
-	"github.com/imroc/req"
-)
-
-var (
-	Local *time.Location
-)
-
-func init() {
-	Local, _ = time.LoadLocation("Asia/Chongqing")
-	time.Local = Local
-	req.EnableInsecureTLS(true)
-}
diff --git a/example/main.go b/example/main.go
index bfe121a..9a9d707 100644
--- a/example/main.go
+++ b/example/main.go
@@ -5,8 +5,7 @@ import (
 	_ "github.com/gxxgle/go-utils/config"
 	_ "github.com/gxxgle/go-utils/conver"
 	_ "github.com/gxxgle/go-utils/db"
-	_ "github.com/gxxgle/go-utils/env"
-	_ "github.com/gxxgle/go-utils/ip"
+	_ "github.com/gxxgle/go-utils/http"
 	_ "github.com/gxxgle/go-utils/json"
 	_ "github.com/gxxgle/go-utils/log"
 	_ "github.com/gxxgle/go-utils/math"
@@ -15,6 +14,7 @@ import (
 	_ "github.com/gxxgle/go-utils/proxy"
 	_ "github.com/gxxgle/go-utils/schedule"
 	_ "github.com/gxxgle/go-utils/sync"
+	_ "github.com/gxxgle/go-utils/time"
 	_ "github.com/gxxgle/go-utils/validate"
 )
 
diff --git a/go.mod b/go.mod
index 2864fbe..29be49c 100644
--- a/go.mod
+++ b/go.mod
@@ -7,8 +7,8 @@ require (
 	github.com/doug-martin/goqu/v9 v9.9.0
 	github.com/go-playground/validator/v10 v10.3.0
 	github.com/go-redis/redis/v7 v7.4.0
+	github.com/go-resty/resty/v2 v2.3.0
 	github.com/go-sql-driver/mysql v1.5.0
-	github.com/imroc/req v0.3.0
 	github.com/json-iterator/go v1.1.10
 	github.com/patrickmn/go-cache v0.0.0-20191004192108-46f407853014
 	github.com/phuslu/log v1.0.40
diff --git a/go.sum b/go.sum
index f5611a1..8ae4f6c 100644
--- a/go.sum
+++ b/go.sum
@@ -26,6 +26,8 @@ github.com/go-playground/validator/v10 v10.3.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GO
 github.com/go-redis/redis/v7 v7.2.0/go.mod h1:JDNMw23GTyLNC4GZu9njt15ctBQVn7xjRfnwdHj/Dcg=
 github.com/go-redis/redis/v7 v7.4.0 h1:7obg6wUoj05T0EpY0o8B59S9w5yeMWql7sw2kwNW1x4=
 github.com/go-redis/redis/v7 v7.4.0/go.mod h1:JDNMw23GTyLNC4GZu9njt15ctBQVn7xjRfnwdHj/Dcg=
+github.com/go-resty/resty/v2 v2.3.0 h1:JOOeAvjSlapTT92p8xiS19Zxev1neGikoHsXJeOq8So=
+github.com/go-resty/resty/v2 v2.3.0/go.mod h1:UpN9CgLZNsv4e9XG50UU8xdI0F43UQ4HmxLBDwaroHU=
 github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
 github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
 github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
@@ -39,8 +41,6 @@ github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8l
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
-github.com/imroc/req v0.3.0 h1:3EioagmlSG+z+KySToa+Ylo3pTFZs+jh3Brl7ngU12U=
-github.com/imroc/req v0.3.0/go.mod h1:F+NZ+2EFSo6EFXdeIbpfE9hcC233id70kf0byW97Caw=
 github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
@@ -103,6 +103,7 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
+golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200904194848-62affa334b73 h1:MXfv8rhZWmFeqX3GNZRsd6vOLoaCHjYEX3qkRo3YBUA=
 golang.org/x/net v0.0.0-20200904194848-62affa334b73/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
diff --git a/http/http.go b/http/http.go
new file mode 100644
index 0000000..03c15e6
--- /dev/null
+++ b/http/http.go
@@ -0,0 +1,18 @@
+package http
+
+import (
+	"crypto/tls"
+
+	"github.com/gxxgle/go-utils/time"
+
+	"github.com/go-resty/resty/v2"
+)
+
+var (
+	C = resty.New()
+)
+
+func init() {
+	C.SetTimeout(time.Second * 30)
+	C.SetTLSClientConfig(&tls.Config{InsecureSkipVerify: true})
+}
diff --git a/http/http_test.go b/http/http_test.go
new file mode 100644
index 0000000..2a087c3
--- /dev/null
+++ b/http/http_test.go
@@ -0,0 +1,14 @@
+package http
+
+import (
+	"testing"
+)
+
+func TestGet(t *testing.T) {
+	resp, err := C.R().Get("http://pv.sohu.com/cityjson?ie=utf-8")
+	if err != nil {
+		t.Fatal("http get failed, err:", err)
+	}
+
+	t.Log("http response:", resp.String())
+}
diff --git a/ip/example/main.go b/ip/example/main.go
deleted file mode 100644
index 510b88e..0000000
--- a/ip/example/main.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package main
-
-import (
-	"log"
-
-	"github.com/gxxgle/go-utils/ip"
-)
-
-func main() {
-	log.Println(ip.ExtranetIP())
-	log.Println(ip.IntranetIPs())
-}
diff --git a/ip/ip.go b/ip/ip.go
deleted file mode 100644
index e5f0358..0000000
--- a/ip/ip.go
+++ /dev/null
@@ -1,73 +0,0 @@
-package ip
-
-import (
-	"bytes"
-	"net"
-
-	"github.com/imroc/req"
-)
-
-// ExtranetIP return external IP address.
-func ExtranetIP() (string, error) {
-	resp, err := req.Get("http://pv.sohu.com/cityjson?ie=utf-8")
-	if err != nil {
-		return "", err
-	}
-
-	bs := resp.Bytes()
-	idx := bytes.Index(bs, []byte(`"cip": "`))
-	bs = bs[idx+len(`"cip": "`):]
-	idx = bytes.Index(bs, []byte(`"`))
-	bs = bs[:idx]
-	return string(bs), nil
-}
-
-// IntranetIPs return internal IP address.
-func IntranetIPs() ([]string, error) {
-	out := make([]string, 0)
-	is, err := net.Interfaces()
-	if err != nil {
-		return nil, err
-	}
-
-	for _, i := range is {
-		// interface down
-		if i.Flags&net.FlagUp == 0 {
-			continue
-		}
-
-		// loopback interface
-		if i.Flags&net.FlagLoopback != 0 {
-			continue
-		}
-
-		addrs, err := i.Addrs()
-		if err != nil {
-			return nil, err
-		}
-
-		for _, addr := range addrs {
-			var ip net.IP
-
-			switch v := addr.(type) {
-			case *net.IPNet:
-				ip = v.IP
-			case *net.IPAddr:
-				ip = v.IP
-			}
-
-			if ip == nil || ip.IsLoopback() {
-				continue
-			}
-
-			ip = ip.To4()
-			if ip == nil {
-				continue
-			}
-
-			out = append(out, ip.String())
-		}
-	}
-
-	return out, nil
-}
diff --git a/log/log.go b/log/log.go
index c7c841e..3fe5b77 100644
--- a/log/log.go
+++ b/log/log.go
@@ -15,7 +15,7 @@ var (
 )
 
 func init() {
-	log.DefaultLogger.Level = log.InfoLevel
+	log.DefaultLogger.SetLevel(log.InfoLevel)
 	log.DefaultLogger.Caller = 1
 }
 
@@ -53,8 +53,12 @@ func File(logpaths ...string) {
 	log.DefaultLogger.Writer = fileWriter
 }
 
+func SetLevel(lvl log.Level) {
+	log.DefaultLogger.SetLevel(lvl)
+}
+
 func SetDebug() {
-	log.DefaultLogger.Level = log.DebugLevel
+	SetLevel(log.DebugLevel)
 }
 
 func LogIfError(err error, msgs ...string) {
@@ -70,6 +74,10 @@ func LogIfError(err error, msgs ...string) {
 	log.Error().Caller(log.DefaultLogger.Caller + 1).Err(err).Msg(msg)
 }
 
+func LogIfFuncError(fn func() error, msgs ...string) {
+	LogIfError(fn(), msgs...)
+}
+
 func FatalIfError(err error, msgs ...string) {
 	if err == nil {
 		return
diff --git a/schedule/schedule.go b/schedule/schedule.go
index a73d616..508e380 100644
--- a/schedule/schedule.go
+++ b/schedule/schedule.go
@@ -3,9 +3,8 @@ package schedule
 import (
 	"log"
 	"sync"
-	"time"
 
-	"github.com/gxxgle/go-utils/env"
+	"github.com/gxxgle/go-utils/time"
 
 	"github.com/robfig/cron/v3"
 )
@@ -30,7 +29,7 @@ func init() {
 
 // New new cron
 func New() (*Schedule, error) {
-	c := cron.New(cron.WithLocation(env.Local))
+	c := cron.New(cron.WithLocation(time.Local))
 	s := &Schedule{
 		Cron:    c,
 		Stopped: false,
diff --git a/time/time.go b/time/time.go
new file mode 100644
index 0000000..c369d48
--- /dev/null
+++ b/time/time.go
@@ -0,0 +1,115 @@
+package time
+
+import (
+	"time"
+)
+
+const (
+	ISO8601      = "2006-01-02T15:04:05-0700"
+	ISO8601Milli = "2006-01-02T15:04:05.999-0700"
+)
+
+// time.Month
+const (
+	M1  = time.January
+	M2  = time.February
+	M3  = time.March
+	M4  = time.April
+	M5  = time.May
+	M6  = time.June
+	M7  = time.July
+	M8  = time.August
+	M9  = time.September
+	M10 = time.October
+	M11 = time.November
+	M12 = time.December
+)
+
+type Duration = time.Duration
+
+// time.Duration
+const (
+	Millisecond = time.Millisecond
+	Second      = time.Second
+	Minute      = time.Minute
+	Hour        = time.Hour
+	Day         = time.Hour * 24
+)
+
+var (
+	Sleep = time.Sleep
+	Local = time.Local
+)
+
+type Time time.Time
+
+func New(t time.Time) Time {
+	return Time(t)
+}
+
+func Now() Time {
+	return New(time.Now())
+}
+
+func Date(year int, month time.Month, day int, hour int, min int, sec int, nsec int) Time {
+	return New(time.Date(year, month, day, hour, min, sec, nsec, time.Local))
+}
+
+func (t Time) Time() time.Time {
+	return time.Time(t)
+}
+
+func (t Time) Unix() int64 {
+	return t.Time().Unix()
+}
+
+func (t Time) UnixMilli() int64 {
+	return t.Time().UnixNano() / int64(Millisecond)
+}
+
+func (t Time) String() string {
+	return t.Time().Format(ISO8601Milli)
+}
+
+func (t Time) MarshalJSON() ([]byte, error) {
+	b := make([]byte, 0, len(ISO8601Milli)+2)
+	b = append(b, '"')
+	b = t.Time().AppendFormat(b, ISO8601Milli)
+	b = append(b, '"')
+	return b, nil
+}
+
+func (t *Time) UnmarshalJSON(data []byte) error {
+	if string(data) == "null" {
+		return nil
+	}
+
+	tm, err := time.Parse(`"`+ISO8601Milli+`"`, string(data))
+	if err != nil {
+		return err
+	}
+
+	*t = New(tm)
+	return nil
+}
+
+func SetUTC() error {
+	Local = time.UTC
+	time.Local = time.UTC
+	return nil
+}
+
+func SetChinaLocal() error {
+	local, err := time.LoadLocation("Asia/Chongqing")
+	if err != nil {
+		return err
+	}
+
+	Local = local
+	time.Local = local
+	return nil
+}
+
+func Since(t Time) Duration {
+	return time.Since(t.Time())
+}
diff --git a/time/time_test.go b/time/time_test.go
new file mode 100644
index 0000000..e98eac6
--- /dev/null
+++ b/time/time_test.go
@@ -0,0 +1,26 @@
+package time
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/gxxgle/go-utils/json"
+)
+
+func TestJSON(t *testing.T) {
+	before := New(2008, M8, 8, 20, 8, 8, 8*1000*1000)
+	str := json.MustMarshalToString(before)
+	after := Time{}
+
+	if err := json.UnmarshalFromString(str, &after); err != nil {
+		t.Fatal("time.Time UnmarshalJSON failed, err:", err)
+	}
+
+	if !strings.HasPrefix(str, "\"2008-08-08T20:08:08") {
+		t.Fatal("time.Time MarshalJSON not match, str:", str)
+	}
+
+	if before != after {
+		t.Fatal("time.Time UnmarshalJSON not match")
+	}
+}