diff --git a/vms/platformvm/block/executor/proposal_block_test.go b/vms/platformvm/block/executor/proposal_block_test.go
index 96afd9e417be..df2d14c090ce 100644
--- a/vms/platformvm/block/executor/proposal_block_test.go
+++ b/vms/platformvm/block/executor/proposal_block_test.go
@@ -19,7 +19,6 @@ import (
 	"github.com/ava-labs/avalanchego/utils/constants"
 	"github.com/ava-labs/avalanchego/utils/crypto/bls"
 	"github.com/ava-labs/avalanchego/utils/crypto/secp256k1"
-	"github.com/ava-labs/avalanchego/utils/timer/mockable"
 	"github.com/ava-labs/avalanchego/vms/components/avax"
 	"github.com/ava-labs/avalanchego/vms/platformvm/block"
 	"github.com/ava-labs/avalanchego/vms/platformvm/reward"
@@ -139,9 +138,6 @@ func TestBanffProposalBlockTimeVerification(t *testing.T) {
 	ctrl := gomock.NewController(t)
 
 	env := newEnvironment(t, ctrl, banffFork)
-	env.clk.Set(defaultGenesisTime)
-	env.config.BanffTime = time.Time{}        // activate Banff
-	env.config.DurangoTime = mockable.MaxTime // deactivate Durango
 
 	// create parentBlock. It's a standard one for simplicity
 	parentTime := defaultGenesisTime
@@ -550,7 +546,6 @@ func TestBanffProposalBlockUpdateStakers(t *testing.T) {
 		t.Run(test.description, func(t *testing.T) {
 			require := require.New(t)
 			env := newEnvironment(t, nil, banffFork)
-			env.config.BanffTime = time.Time{} // activate Banff
 
 			subnetID := testSubnet1.ID()
 			env.config.TrackedSubnets.Add(subnetID)
@@ -703,7 +698,6 @@ func TestBanffProposalBlockUpdateStakers(t *testing.T) {
 func TestBanffProposalBlockRemoveSubnetValidator(t *testing.T) {
 	require := require.New(t)
 	env := newEnvironment(t, nil, banffFork)
-	env.config.BanffTime = time.Time{} // activate Banff
 
 	subnetID := testSubnet1.ID()
 	env.config.TrackedSubnets.Add(subnetID)
@@ -846,7 +840,6 @@ func TestBanffProposalBlockTrackedSubnet(t *testing.T) {
 		t.Run(fmt.Sprintf("tracked %t", tracked), func(t *testing.T) {
 			require := require.New(t)
 			env := newEnvironment(t, nil, banffFork)
-			env.config.BanffTime = time.Time{} // activate Banff
 
 			subnetID := testSubnet1.ID()
 			if tracked {
@@ -951,7 +944,6 @@ func TestBanffProposalBlockTrackedSubnet(t *testing.T) {
 func TestBanffProposalBlockDelegatorStakerWeight(t *testing.T) {
 	require := require.New(t)
 	env := newEnvironment(t, nil, banffFork)
-	env.config.BanffTime = time.Time{} // activate Banff
 
 	// Case: Timestamp is after next validator start time
 	// Add a pending validator
@@ -1136,7 +1128,6 @@ func TestBanffProposalBlockDelegatorStakerWeight(t *testing.T) {
 func TestBanffProposalBlockDelegatorStakers(t *testing.T) {
 	require := require.New(t)
 	env := newEnvironment(t, nil, banffFork)
-	env.config.BanffTime = time.Time{} // activate Banff
 
 	// Case: Timestamp is after next validator start time
 	// Add a pending validator
@@ -1320,9 +1311,7 @@ func TestBanffProposalBlockDelegatorStakers(t *testing.T) {
 
 func TestAddValidatorProposalBlock(t *testing.T) {
 	require := require.New(t)
-	env := newEnvironment(t, nil, apricotPhase5)
-	env.config.BanffTime = time.Time{}   // activate Banff
-	env.config.DurangoTime = time.Time{} // activate Durango
+	env := newEnvironment(t, nil, durangoFork)
 
 	now := env.clk.Time()
 
diff --git a/vms/platformvm/block/executor/standard_block_test.go b/vms/platformvm/block/executor/standard_block_test.go
index e7e4dc1b8ed9..85bdc41c505c 100644
--- a/vms/platformvm/block/executor/standard_block_test.go
+++ b/vms/platformvm/block/executor/standard_block_test.go
@@ -85,7 +85,6 @@ func TestBanffStandardBlockTimeVerification(t *testing.T) {
 	env := newEnvironment(t, ctrl, banffFork)
 	now := env.clk.Time()
 	env.clk.Set(now)
-	env.config.BanffTime = time.Time{} // activate Banff
 
 	// setup and store parent block
 	// it's a standard block for simplicity
@@ -291,7 +290,6 @@ func TestBanffStandardBlockUpdatePrimaryNetworkStakers(t *testing.T) {
 	require := require.New(t)
 
 	env := newEnvironment(t, nil, banffFork)
-	env.config.BanffTime = time.Time{} // activate Banff
 
 	// Case: Timestamp is after next validator start time
 	// Add a pending validator
@@ -493,7 +491,6 @@ func TestBanffStandardBlockUpdateStakers(t *testing.T) {
 		t.Run(test.description, func(t *testing.T) {
 			require := require.New(t)
 			env := newEnvironment(t, nil, banffFork)
-			env.config.BanffTime = time.Time{} // activate Banff
 
 			subnetID := testSubnet1.ID()
 			env.config.TrackedSubnets.Add(subnetID)
@@ -593,7 +590,6 @@ func TestBanffStandardBlockUpdateStakers(t *testing.T) {
 func TestBanffStandardBlockRemoveSubnetValidator(t *testing.T) {
 	require := require.New(t)
 	env := newEnvironment(t, nil, banffFork)
-	env.config.BanffTime = time.Time{} // activate Banff
 
 	subnetID := testSubnet1.ID()
 	env.config.TrackedSubnets.Add(subnetID)
@@ -691,7 +687,6 @@ func TestBanffStandardBlockTrackedSubnet(t *testing.T) {
 		t.Run(fmt.Sprintf("tracked %t", tracked), func(t *testing.T) {
 			require := require.New(t)
 			env := newEnvironment(t, nil, banffFork)
-			env.config.BanffTime = time.Time{} // activate Banff
 
 			subnetID := testSubnet1.ID()
 			if tracked {
@@ -752,7 +747,6 @@ func TestBanffStandardBlockTrackedSubnet(t *testing.T) {
 func TestBanffStandardBlockDelegatorStakerWeight(t *testing.T) {
 	require := require.New(t)
 	env := newEnvironment(t, nil, banffFork)
-	env.config.BanffTime = time.Time{} // activate Banff
 
 	// Case: Timestamp is after next validator start time
 	// Add a pending validator