diff --git a/common.go b/common.go
index e904248..f57d932 100644
--- a/common.go
+++ b/common.go
@@ -121,7 +121,7 @@ type Config struct {
 
 	// Time returns the current time as the number of seconds since the epoch.
 	// If Time is nil, TLS uses the system time.Seconds.
-	Time func() int64
+	Time func() time.Time
 
 	// Certificates contains one or more certificate chains
 	// to present to the other side of the connection.
@@ -175,10 +175,10 @@ func (c *Config) rand() io.Reader {
 	return r
 }
 
-func (c *Config) time() int64 {
+func (c *Config) time() time.Time {
 	t := c.Time
 	if t == nil {
-		t = time.Seconds
+		t = time.Now
 	}
 	return t()
 }
diff --git a/handshake_client.go b/handshake_client.go
index 0f41008..5559c7a 100644
--- a/handshake_client.go
+++ b/handshake_client.go
@@ -32,7 +32,7 @@ func (c *Conn) clientHandshake() error {
 		nextProtoNeg:       len(c.config.NextProtos) > 0,
 	}
 
-	t := uint32(c.config.time())
+	t := uint32(c.config.time().Unix())
 	hello.random[0] = byte(t >> 24)
 	hello.random[1] = byte(t >> 16)
 	hello.random[2] = byte(t >> 8)
diff --git a/handshake_server.go b/handshake_server.go
index 1fa4585..11ea500 100644
--- a/handshake_server.go
+++ b/handshake_server.go
@@ -95,7 +95,7 @@ FindCipherSuite:
 
 	hello.vers = vers
 	hello.cipherSuite = suite.id
-	t := uint32(config.time())
+	t := uint32(config.time().Unix())
 	hello.random = make([]byte, 32)
 	hello.random[0] = byte(t >> 24)
 	hello.random[1] = byte(t >> 16)
diff --git a/handshake_server_test.go b/handshake_server_test.go
index bc37979..e00c32c 100644
--- a/handshake_server_test.go
+++ b/handshake_server_test.go
@@ -15,6 +15,7 @@ import (
 	"strconv"
 	"strings"
 	"testing"
+	"time"
 )
 
 type zeroSource struct{}
@@ -31,7 +32,7 @@ var testConfig *Config
 
 func init() {
 	testConfig = new(Config)
-	testConfig.Time = func() int64 { return 0 }
+	testConfig.Time = func() time.Time { return time.Unix(0, 0) }
 	testConfig.Rand = zeroSource{}
 	testConfig.Certificates = make([]Certificate, 1)
 	testConfig.Certificates[0].Certificate = [][]byte{testCertificate}