diff --git a/helper/duration/duration.go b/helper/duration/duration.go
index e3c5b683c8..f6bede0dd8 100644
--- a/helper/duration/duration.go
+++ b/helper/duration/duration.go
@@ -6,23 +6,23 @@ import (
 	"time"
 )
 
-func ParseDurationSecond(inp string) (int, error) {
-	var result int
+func ParseDurationSecond(inp string) (time.Duration, error) {
+	var err error
+	var dur time.Duration
 	// Look for a suffix otherwise its a plain second value
 	if strings.HasSuffix(inp, "s") || strings.HasSuffix(inp, "m") || strings.HasSuffix(inp, "h") {
-		dur, err := time.ParseDuration(inp)
+		dur, err = time.ParseDuration(inp)
 		if err != nil {
-			return result, err
+			return dur, err
 		}
-		result = int(dur.Seconds())
 	} else {
 		// Plain integer
-		val, err := strconv.ParseInt(inp, 10, 64)
+		secs, err := strconv.ParseInt(inp, 10, 64)
 		if err != nil {
-			return result, err
+			return dur, err
 		}
-		result = int(val)
+		dur = time.Duration(secs) * time.Second
 	}
 
-	return result, nil
+	return dur, nil
 }
diff --git a/helper/duration/duration_test.go b/helper/duration/duration_test.go
index 9d3124ff45..02f0706eb0 100644
--- a/helper/duration/duration_test.go
+++ b/helper/duration/duration_test.go
@@ -1,20 +1,23 @@
 package duration
 
-import "testing"
+import (
+	"testing"
+	"time"
+)
 
 func Test_ParseDurationSecond(t *testing.T) {
 	outp, err := ParseDurationSecond("9876s")
 	if err != nil {
 		t.Fatal(err)
 	}
-	if outp != 9876 {
+	if outp != time.Duration(9876)*time.Second {
 		t.Fatal("not equivalent")
 	}
 	outp, err = ParseDurationSecond("9876")
 	if err != nil {
 		t.Fatal(err)
 	}
-	if outp != 9876 {
+	if outp != time.Duration(9876)*time.Second {
 		t.Fatal("not equivalent")
 	}
 }
diff --git a/http/handler.go b/http/handler.go
index aef85e9756..3de72789a3 100644
--- a/http/handler.go
+++ b/http/handler.go
@@ -6,11 +6,10 @@ import (
 	"io"
 	"net/http"
 	"net/url"
-	"strconv"
 	"strings"
-	"time"
 
 	"github.com/hashicorp/errwrap"
+	"github.com/hashicorp/vault/helper/duration"
 	"github.com/hashicorp/vault/logical"
 	"github.com/hashicorp/vault/vault"
 )
@@ -167,23 +166,14 @@ func requestWrapTTL(r *http.Request, req *logical.Request) (*logical.Request, er
 	}
 
 	// If it has an allowed suffix parse as a duration string
-	if strings.HasSuffix(wrapTTL, "s") || strings.HasSuffix(wrapTTL, "m") || strings.HasSuffix(wrapTTL, "h") {
-		dur, err := time.ParseDuration(wrapTTL)
-		if err != nil {
-			return req, err
-		}
-		req.WrapTTL = dur
-	} else {
-		// Parse as a straight number of seconds
-		seconds, err := strconv.ParseInt(wrapTTL, 10, 64)
-		if err != nil {
-			return req, err
-		}
-		req.WrapTTL = time.Duration(seconds) * time.Second
+	dur, err := duration.ParseDurationSecond(wrapTTL)
+	if err != nil {
+		return req, err
 	}
-	if int64(req.WrapTTL) < 0 {
+	if int64(dur) < 0 {
 		return req, fmt.Errorf("requested wrap ttl cannot be negative")
 	}
+	req.WrapTTL = dur
 
 	return req, nil
 }
diff --git a/logical/framework/field_data.go b/logical/framework/field_data.go
index 00e0f3122a..3bbd16fbc1 100644
--- a/logical/framework/field_data.go
+++ b/logical/framework/field_data.go
@@ -150,7 +150,6 @@ func (d *FieldData) getPrimitive(
 
 	case TypeDurationSecond:
 		var result int
-		var err error
 		switch inp := raw.(type) {
 		case nil:
 			return nil, false, nil
@@ -161,10 +160,11 @@ func (d *FieldData) getPrimitive(
 		case float64:
 			result = int(inp)
 		case string:
-			result, err = duration.ParseDurationSecond(inp)
+			dur, err := duration.ParseDurationSecond(inp)
 			if err != nil {
 				return nil, true, err
 			}
+			result = int(dur.Seconds())
 
 		default:
 			return nil, false, fmt.Errorf("invalid input '%v'", raw)
diff --git a/vault/logical_passthrough.go b/vault/logical_passthrough.go
index b1fe8107dd..1d176e697b 100644
--- a/vault/logical_passthrough.go
+++ b/vault/logical_passthrough.go
@@ -3,10 +3,9 @@ package vault
 import (
 	"encoding/json"
 	"fmt"
-	"strconv"
 	"strings"
-	"time"
 
+	"github.com/hashicorp/vault/helper/duration"
 	"github.com/hashicorp/vault/logical"
 	"github.com/hashicorp/vault/logical/framework"
 )
@@ -132,19 +131,9 @@ func (b *PassthroughBackend) handleRead(
 	}
 	ttlDuration := b.System().DefaultLeaseTTL()
 	if len(ttl) != 0 {
-
-		// Parse as a duration string if it has an appropriate suffix
-		if strings.HasSuffix(ttl, "s") || strings.HasSuffix(ttl, "m") || strings.HasSuffix(ttl, "h") {
-			dur, err := time.ParseDuration(ttl)
-			if err == nil {
-				ttlDuration = dur
-			}
-		} else {
-			// Parse as a straight number of seconds
-			seconds, err := strconv.ParseInt(ttl, 10, 64)
-			if err == nil {
-				ttlDuration = time.Duration(seconds) * time.Second
-			}
+		dur, err := duration.ParseDurationSecond(ttl)
+		if err == nil {
+			ttlDuration = dur
 		}
 
 		if b.generateLeases {
diff --git a/vault/logical_system.go b/vault/logical_system.go
index c3caaad8df..3b9a392ef9 100644
--- a/vault/logical_system.go
+++ b/vault/logical_system.go
@@ -709,7 +709,7 @@ func (b *SystemBackend) handleMount(
 					"unable to parse default TTL of %s: %s", apiConfig.DefaultLeaseTTL, err)),
 				logical.ErrInvalidRequest
 		}
-		config.DefaultLeaseTTL = time.Duration(tmpDef) * time.Second
+		config.DefaultLeaseTTL = tmpDef
 	}
 
 	switch apiConfig.MaxLeaseTTL {
@@ -722,7 +722,7 @@ func (b *SystemBackend) handleMount(
 					"unable to parse max TTL of %s: %s", apiConfig.MaxLeaseTTL, err)),
 				logical.ErrInvalidRequest
 		}
-		config.MaxLeaseTTL = time.Duration(tmpMax) * time.Second
+		config.MaxLeaseTTL = tmpMax
 	}
 
 	if config.MaxLeaseTTL != 0 && config.DefaultLeaseTTL > config.MaxLeaseTTL {
@@ -932,8 +932,7 @@ func (b *SystemBackend) handleTuneWriteCommon(
 			if err != nil {
 				return handleError(err)
 			}
-			tmpDurDef := time.Duration(tmpDef) * time.Second
-			newDefault = &tmpDurDef
+			newDefault = &tmpDef
 		}
 
 		maxTTL := data.Get("max_lease_ttl").(string)
@@ -947,8 +946,7 @@ func (b *SystemBackend) handleTuneWriteCommon(
 			if err != nil {
 				return handleError(err)
 			}
-			tmpDurMax := time.Duration(tmpMax) * time.Second
-			newMax = &tmpDurMax
+			newMax = &tmpMax
 		}
 
 		if newDefault != nil || newMax != nil {