diff --git a/monitor/interface.go b/monitor/interface.go
index 7789fab..21879af 100644
--- a/monitor/interface.go
+++ b/monitor/interface.go
@@ -3,7 +3,6 @@ package monitor
 import (
 	"sync"
 
-	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/planetmint/planetmint-go/config"
 	"github.com/syndtr/goleveldb/leveldb"
 )
@@ -11,7 +10,6 @@ import (
 type MQTTMonitorClientI interface {
 	AddParticipant(address string, lastSeenTS int64) (err error)
 	SelectPoPParticipantsOutOfActiveActors() (challenger string, challengee string, err error)
-	SetContext(ctx sdk.Context)
 	Start() (err error)
 }
 
@@ -47,12 +45,6 @@ func LazyMqttMonitorLoader(homeDir string) {
 	}
 }
 
-func SetContext(ctx sdk.Context) {
-	monitorMutex.Lock()
-	mqttMonitorInstance.SetContext(ctx)
-	monitorMutex.Unlock()
-}
-
 func SelectPoPParticipantsOutOfActiveActors() (challenger string, challengee string, err error) {
 	monitorMutex.Lock()
 	challenger, challengee, err = mqttMonitorInstance.SelectPoPParticipantsOutOfActiveActors()
diff --git a/monitor/mocks/mqtt_monitor.go b/monitor/mocks/mqtt_monitor.go
index a08e814..ea020a8 100644
--- a/monitor/mocks/mqtt_monitor.go
+++ b/monitor/mocks/mqtt_monitor.go
@@ -1,9 +1,5 @@
 package mocks
 
-import (
-	types "github.com/cosmos/cosmos-sdk/types"
-)
-
 // MockMQTTMonitorClientI is a mock of MQTTMonitorClientI interface.
 type MockMQTTMonitorClientI struct {
 	myStringList []string
@@ -27,10 +23,6 @@ func (m *MockMQTTMonitorClientI) SelectPoPParticipantsOutOfActiveActors() (strin
 	return challenger, challengee, nil
 }
 
-// SetContext mocks base method.
-func (m *MockMQTTMonitorClientI) SetContext(_ types.Context) {
-}
-
 // Start mocks base method.
 func (m *MockMQTTMonitorClientI) Start() error {
 	return nil
diff --git a/monitor/mqtt_monitor.go b/monitor/mqtt_monitor.go
index 45e08f1..39d8310 100644
--- a/monitor/mqtt_monitor.go
+++ b/monitor/mqtt_monitor.go
@@ -242,9 +242,3 @@ func (mms *MqttMonitor) Log(msg string) {
 		util.GetAppLogger().Info(*localContext, msg)
 	}
 }
-
-func (mms *MqttMonitor) SetContext(ctx sdk.Context) {
-	mms.contextMutex.Lock()
-	mms.sdkContext = &ctx
-	mms.contextMutex.Unlock()
-}
diff --git a/util/time.go b/util/time.go
deleted file mode 100644
index e8ebd21..0000000
--- a/util/time.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package util
-
-import (
-	"log"
-	"strconv"
-	"time"
-)
-
-func String2UnixTime(timeInput string) (int64, error) {
-	// Layout specifying the format of the input string
-	// Note: Go uses a specific reference time (Mon Jan 2 15:04:05 MST 2006) to define format layouts
-	layout := "2006-01-02T15:04:05"
-	log.Println("[app] [Monitor] [time] add time string: " + timeInput)
-	// Parse the string into a time.Time struct in local time zone
-	parsedTime, err := time.Parse(layout, timeInput)
-	if err != nil {
-		return 0, err
-	}
-
-	// Convert to UTC if not already
-	utcTime := parsedTime.UTC()
-	unixTime := utcTime.Unix()
-	log.Println("[app] [Monitor] [time] unix time: " + strconv.FormatInt(unixTime, 10))
-	return unixTime, nil
-}
diff --git a/util/time_test.go b/util/time_test.go
deleted file mode 100644
index d56c517..0000000
--- a/util/time_test.go
+++ /dev/null
@@ -1,15 +0,0 @@
-package util
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestString2UnixTime(t *testing.T) {
-	t.Parallel()
-	input := "2024-03-26T11:10:41"
-	unixTime, err := String2UnixTime(input)
-	assert.NoError(t, err)
-	assert.Equal(t, int64(1711451441), unixTime)
-}
diff --git a/x/dao/abci.go b/x/dao/abci.go
index 49680f0..0f562de 100644
--- a/x/dao/abci.go
+++ b/x/dao/abci.go
@@ -24,7 +24,6 @@ func BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock, k keeper.Keeper)
 	hexProposerAddress := hex.EncodeToString(proposerAddress)
 	if isPopHeight(ctx, k, currentBlockHeight) {
 		// select PoP participants
-		monitor.SetContext(ctx)
 		challenger, challengee, err := monitor.SelectPoPParticipantsOutOfActiveActors()
 		if err != nil {
 			util.GetAppLogger().Error(ctx, "error during PoP Participant selection ", err)