diff --git a/cmd/blockchaincmd/add_validator.go b/cmd/blockchaincmd/add_validator.go
index 78f0bd763..e34b68f31 100644
--- a/cmd/blockchaincmd/add_validator.go
+++ b/cmd/blockchaincmd/add_validator.go
@@ -376,7 +376,7 @@ func CallAddValidator(
 			}
 		}
 		if duration == 0 {
-			duration, err = PromptDuration(time.Now(), network)
+			duration, err = PromptDuration(time.Now(), network, true) // it's pos
 			if err != nil {
 				return nil
 			}
@@ -651,17 +651,19 @@ func CallAddValidatorNonSOV(
 	return err
 }
 
-func PromptDuration(start time.Time, network models.Network) (time.Duration, error) {
+func PromptDuration(start time.Time, network models.Network, isPos bool) (time.Duration, error) {
 	for {
 		txt := "How long should this validator be validating? Enter a duration, e.g. 8760h. Valid time units are \"ns\", \"us\" (or \"µs\"), \"ms\", \"s\", \"m\", \"h\""
 		var d time.Duration
 		var err error
-		switch network.Kind {
-		case models.Fuji:
+		switch {
+		case network.Kind == models.Fuji:
 			d, err = app.Prompt.CaptureFujiDuration(txt)
-		case models.Mainnet:
+		case network.Kind == models.Mainnet && isPos:
+			d, err = app.Prompt.CaptureMainnetL1StakingDuration(txt)
+		case network.Kind == models.Mainnet && !isPos:
 			d, err = app.Prompt.CaptureMainnetDuration(txt)
-		case models.EtnaDevnet:
+		case network.Kind == models.EtnaDevnet:
 			d, err = app.Prompt.CaptureEtnaDuration(txt)
 		default:
 			d, err = app.Prompt.CaptureDuration(txt)
@@ -756,7 +758,7 @@ func getTimeParameters(network models.Network, nodeID ids.NodeID, isValidator bo
 		case defaultDurationOption:
 			useDefaultDuration = true
 		default:
-			duration, err = PromptDuration(start, network)
+			duration, err = PromptDuration(start, network, false) // notSoV
 			if err != nil {
 				return time.Time{}, 0, err
 			}
diff --git a/cmd/nodecmd/validate_primary.go b/cmd/nodecmd/validate_primary.go
index ddf755492..3331d9a3b 100644
--- a/cmd/nodecmd/validate_primary.go
+++ b/cmd/nodecmd/validate_primary.go
@@ -206,7 +206,7 @@ func GetTimeParametersPrimaryNetwork(network models.Network, nodeIndex int, vali
 		}
 	default:
 		useCustomDuration = true
-		duration, err = blockchaincmd.PromptDuration(start, network)
+		duration, err = blockchaincmd.PromptDuration(start, network, false) // not L1
 		if err != nil {
 			return time.Time{}, 0, err
 		}
diff --git a/internal/mocks/prompter.go b/internal/mocks/prompter.go
index 74a552840..24e44b1d6 100644
--- a/internal/mocks/prompter.go
+++ b/internal/mocks/prompter.go
@@ -508,6 +508,34 @@ func (_m *Prompter) CaptureMainnetDuration(promptStr string) (time.Duration, err
 	return r0, r1
 }
 
+// CaptureMainnetL1StakingDuration provides a mock function with given fields: promptStr
+func (_m *Prompter) CaptureMainnetL1StakingDuration(promptStr string) (time.Duration, error) {
+	ret := _m.Called(promptStr)
+
+	if len(ret) == 0 {
+		panic("no return value specified for CaptureMainnetDuration")
+	}
+
+	var r0 time.Duration
+	var r1 error
+	if rf, ok := ret.Get(0).(func(string) (time.Duration, error)); ok {
+		return rf(promptStr)
+	}
+	if rf, ok := ret.Get(0).(func(string) time.Duration); ok {
+		r0 = rf(promptStr)
+	} else {
+		r0 = ret.Get(0).(time.Duration)
+	}
+
+	if rf, ok := ret.Get(1).(func(string) error); ok {
+		r1 = rf(promptStr)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
 // CaptureNewFilepath provides a mock function with given fields: promptStr
 func (_m *Prompter) CaptureNewFilepath(promptStr string) (string, error) {
 	ret := _m.Called(promptStr)
diff --git a/pkg/prompts/prompts.go b/pkg/prompts/prompts.go
index a5fd7baf9..a09ce8113 100644
--- a/pkg/prompts/prompts.go
+++ b/pkg/prompts/prompts.go
@@ -107,6 +107,7 @@ type Prompter interface {
 	CaptureEtnaDuration(promptStr string) (time.Duration, error)
 	CaptureFujiDuration(promptStr string) (time.Duration, error)
 	CaptureMainnetDuration(promptStr string) (time.Duration, error)
+	CaptureMainnetL1StakingDuration(promptStr string) (time.Duration, error)
 	CaptureDate(promptStr string) (time.Time, error)
 	CaptureNodeID(promptStr string) (ids.NodeID, error)
 	CaptureID(promptStr string) (ids.ID, error)
@@ -263,6 +264,20 @@ func (*realPrompter) CaptureMainnetDuration(promptStr string) (time.Duration, er
 	return time.ParseDuration(durationStr)
 }
 
+func (*realPrompter) CaptureMainnetL1StakingDuration(promptStr string) (time.Duration, error) {
+	prompt := promptui.Prompt{
+		Label:    promptStr,
+		Validate: validateMainnetL1StakingDuration,
+	}
+
+	durationStr, err := prompt.Run()
+	if err != nil {
+		return 0, err
+	}
+
+	return time.ParseDuration(durationStr)
+}
+
 func (*realPrompter) CaptureDate(promptStr string) (time.Time, error) {
 	prompt := promptui.Prompt{
 		Label:    promptStr,
diff --git a/pkg/prompts/validations.go b/pkg/prompts/validations.go
index fdfa11ea2..29f1eb3a6 100644
--- a/pkg/prompts/validations.go
+++ b/pkg/prompts/validations.go
@@ -58,6 +58,21 @@ func validateMainnetStakingDuration(input string) error {
 	return nil
 }
 
+func validateMainnetL1StakingDuration(input string) error {
+	const minL1StakingDuration = 24 * time.Hour
+	d, err := time.ParseDuration(input)
+	if err != nil {
+		return err
+	}
+	if d > genesis.MainnetParams.MaxStakeDuration {
+		return fmt.Errorf("exceeds maximum staking duration of %s", ux.FormatDuration(genesis.MainnetParams.MaxStakeDuration))
+	}
+	if d < minL1StakingDuration {
+		return fmt.Errorf("below the minimum staking duration of %s", ux.FormatDuration(minL1StakingDuration))
+	}
+	return nil
+}
+
 func validateFujiStakingDuration(input string) error {
 	d, err := time.ParseDuration(input)
 	if err != nil {