diff --git a/go.mod b/go.mod
index 39c533236..1593d781c 100644
--- a/go.mod
+++ b/go.mod
@@ -36,7 +36,6 @@ require (
 	github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1
 	github.com/godbus/dbus/v5 v5.1.0
 	github.com/gokrazy/updater v0.0.0-20230215172637-813ccc7f21e2
-	github.com/golang-module/carbon/v2 v2.2.8
 	github.com/golang/mock v1.6.0
 	github.com/google/go-github/v32 v32.1.0
 	github.com/google/uuid v1.3.1
@@ -51,6 +50,7 @@ require (
 	github.com/itchyny/gojq v0.12.13
 	github.com/jeremywohl/flatten v1.0.1
 	github.com/jinzhu/copier v0.4.0
+	github.com/jinzhu/now v1.1.5
 	github.com/joeshaw/carwings v0.0.0-20230425210048-195f7e10e966
 	github.com/joho/godotenv v1.5.1
 	github.com/jpfielding/go-http-digest v0.0.0-20211006141426-fbc93758452e
@@ -145,7 +145,6 @@ require (
 	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf // indirect
 	github.com/itchyny/timefmt-go v0.1.5 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
-	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.17.0 // indirect
diff --git a/go.sum b/go.sum
index 33dd7c68e..cf2e08533 100644
--- a/go.sum
+++ b/go.sum
@@ -297,8 +297,6 @@ github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7a
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 github.com/gokrazy/updater v0.0.0-20230215172637-813ccc7f21e2 h1:kBY5R1tSf+EYZ+QaSrofLaVJtBqYsVNVBWkdMq3Smcg=
 github.com/gokrazy/updater v0.0.0-20230215172637-813ccc7f21e2/go.mod h1:PYOvzGOL4nlBmuxu7IyKQTFLaxr61+WPRNRzVtuYOHw=
-github.com/golang-module/carbon/v2 v2.2.8 h1:a1VxHHKAR7fc1ho7sYXhS1s5S4x7+oqAf2EY5p8C46A=
-github.com/golang-module/carbon/v2 v2.2.8/go.mod h1:XDALX7KgqmHk95xyLeaqX9/LJGbfLATyruTziq68SZ8=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
diff --git a/tariff/fixed.go b/tariff/fixed.go
index 4c97328e0..11f6a36aa 100644
--- a/tariff/fixed.go
+++ b/tariff/fixed.go
@@ -3,12 +3,13 @@ package tariff
 import (
 	"fmt"
 	"sort"
+	"time"
 
 	"github.com/benbjohnson/clock"
 	"github.com/evcc-io/evcc/api"
 	"github.com/evcc-io/evcc/tariff/fixed"
 	"github.com/evcc-io/evcc/util"
-	"github.com/golang-module/carbon/v2"
+	"github.com/jinzhu/now"
 )
 
 type Fixed struct {
@@ -83,20 +84,20 @@ func NewFixedFromConfig(other map[string]interface{}) (api.Tariff, error) {
 func (t *Fixed) Rates() (api.Rates, error) {
 	var res api.Rates
 
-	start := carbon.CreateFromStdTime(t.clock.Now().Local()).StartOfDay()
+	start := now.With(t.clock.Now().Local()).BeginningOfDay()
 	for i := 0; i < 7; i++ {
-		dow := fixed.Day((start.DayOfWeek() + i) % 7)
+		dow := fixed.Day((int(start.Weekday()) + i) % 7)
 
 		zones := t.zones.ForDay(dow)
 		if len(zones) == 0 {
 			return nil, fmt.Errorf("no zones for weekday %d", dow)
 		}
 
-		dayStart := start.AddDays(i)
+		dayStart := start.AddDate(0, 0, i)
 		markers := zones.TimeTableMarkers()
 
 		for i, m := range markers {
-			ts := dayStart.AddMinutes(m.Minutes())
+			ts := dayStart.Add(time.Minute * time.Duration(m.Minutes()))
 
 			var zone *fixed.Zone
 			for j := len(zones) - 1; j >= 0; j-- {
@@ -111,15 +112,15 @@ func (t *Fixed) Rates() (api.Rates, error) {
 			}
 
 			// end rate at end of day or next marker
-			end := dayStart.AddDay()
+			end := dayStart.AddDate(0, 0, 1)
 			if i+1 < len(markers) {
-				end = dayStart.AddMinutes(markers[i+1].Minutes())
+				end = dayStart.Add(time.Minute * time.Duration(markers[i+1].Minutes()))
 			}
 
 			rate := api.Rate{
 				Price: zone.Price,
-				Start: ts.ToStdTime(),
-				End:   end.ToStdTime(),
+				Start: ts,
+				End:   end,
 			}
 
 			res = append(res, rate)
diff --git a/tariff/fixed_test.go b/tariff/fixed_test.go
index 62c964ebc..15656af25 100644
--- a/tariff/fixed_test.go
+++ b/tariff/fixed_test.go
@@ -2,11 +2,12 @@ package tariff
 
 import (
 	"testing"
+	"time"
 
 	"github.com/benbjohnson/clock"
 	"github.com/evcc-io/evcc/api"
 	"github.com/evcc-io/evcc/tariff/fixed"
-	"github.com/golang-module/carbon/v2"
+	"github.com/jinzhu/now"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -20,13 +21,13 @@ func TestFixed(t *testing.T) {
 
 	var expect api.Rates
 	for dow := 0; dow < 7; dow++ {
-		dayStart := carbon.CreateFromStdTime(tf.clock.Now()).StartOfDay().AddDays(dow)
+		dayStart := now.With(tf.clock.Now()).BeginningOfDay().AddDate(0, 0, dow)
 
 		for hour := 0; hour < 24; hour++ {
 			expect = append(expect, api.Rate{
 				Price: 0.3,
-				Start: dayStart.AddHours(hour).ToStdTime(),
-				End:   dayStart.AddHours(hour + 1).ToStdTime(),
+				Start: dayStart.Add(time.Hour * time.Duration(hour)),
+				End:   dayStart.Add(time.Hour * time.Duration(hour+1)),
 			})
 		}
 	}
@@ -53,37 +54,37 @@ func TestFixedSplitZones(t *testing.T) {
 
 	var expect api.Rates
 	for i := 0; i < 7; i++ {
-		dayStart := carbon.CreateFromStdTime(tf.clock.Now()).StartOfDay().AddDays(i)
+		dayStart := now.With(tf.clock.Now()).BeginningOfDay().AddDate(0, 0, i)
 
 		// 00:00-05:00 0.1
 		for hour := 0; hour < 5; hour++ {
 			expect = append(expect, api.Rate{
 				Price: 0.1,
-				Start: dayStart.AddHours(hour).ToStdTime(),
-				End:   dayStart.AddHours(hour + 1).ToStdTime(),
+				Start: dayStart.Add(time.Hour * time.Duration(hour)),
+				End:   dayStart.Add(time.Hour * time.Duration(hour+1)),
 			})
 		}
 
 		// 05:00-05:30 0.1
 		expect = append(expect, api.Rate{
 			Price: 0.1,
-			Start: dayStart.AddHours(5).ToStdTime(),
-			End:   dayStart.AddHours(5).AddMinutes(30).ToStdTime(),
+			Start: dayStart.Add(5 * time.Hour),
+			End:   dayStart.Add(5*time.Hour + 30*time.Minute),
 		})
 
 		// 05:30-06:00 0.5
 		expect = append(expect, api.Rate{
 			Price: 0.5,
-			Start: dayStart.AddHours(5).AddMinutes(30).ToStdTime(),
-			End:   dayStart.AddHours(6).ToStdTime(),
+			Start: dayStart.Add(5*time.Hour + 30*time.Minute),
+			End:   dayStart.Add(6 * time.Hour),
 		})
 
 		// 06:00-21:00 0.5
 		for hour := 6; hour < 21; hour++ {
 			expect = append(expect, api.Rate{
 				Price: 0.5,
-				Start: dayStart.AddHours(hour).ToStdTime(),
-				End:   dayStart.AddHours(hour + 1).ToStdTime(),
+				Start: dayStart.Add(time.Hour * time.Duration(hour)),
+				End:   dayStart.Add(time.Hour * time.Duration(hour+1)),
 			})
 		}
 
@@ -91,8 +92,8 @@ func TestFixedSplitZones(t *testing.T) {
 		for hour := 21; hour < 24; hour++ {
 			expect = append(expect, api.Rate{
 				Price: 0.1,
-				Start: dayStart.AddHours(hour).ToStdTime(),
-				End:   dayStart.AddHours(hour + 1).ToStdTime(),
+				Start: dayStart.Add(time.Hour * time.Duration(hour)),
+				End:   dayStart.Add(time.Hour * time.Duration(hour+1)),
 			})
 		}
 	}