diff --git a/github/github.go b/github/github.go
index 51126f6..5275f19 100644
--- a/github/github.go
+++ b/github/github.go
@@ -393,29 +393,3 @@ func cloneRequest(r *http.Request) *http.Request {
 	}
 	return r2
 }
-
-// Timestamp represents a time that can be unmarshalled from a JSON string
-// formatted as either an RFC3339 or Unix timestamp. This is necessary for some
-// fields since the GitHub API is inconsistent in how it represents times. All
-// exported methods of time.Time can be called on Timestamp.
-type Timestamp struct {
-	time.Time
-}
-
-// UnmarshalJSON implements the json.Unmarshaler interface.
-// Time is expected in RFC3339 or Unix format.
-func (t *Timestamp) UnmarshalJSON(data []byte) (err error) {
-	str := string(data)
-	i, err := strconv.ParseInt(str, 10, 64)
-	if err == nil {
-		(*t).Time = time.Unix(i, 0)
-	} else {
-		(*t).Time, err = time.Parse(`"`+time.RFC3339+`"`, str)
-	}
-	return
-}
-
-// Equal reports whether t and u are equal based on time.Equal
-func (t Timestamp) Equal(u Timestamp) bool {
-	return t.Time.Equal(u.Time)
-}
diff --git a/github/timestamp.go b/github/timestamp.go
new file mode 100644
index 0000000..7aa31e9
--- /dev/null
+++ b/github/timestamp.go
@@ -0,0 +1,37 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import (
+	"strconv"
+	"time"
+)
+
+// Timestamp represents a time that can be unmarshalled from a JSON string
+// formatted as either an RFC3339 or Unix timestamp. This is necessary for some
+// fields since the GitHub API is inconsistent in how it represents times. All
+// exported methods of time.Time can be called on Timestamp.
+type Timestamp struct {
+	time.Time
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface.
+// Time is expected in RFC3339 or Unix format.
+func (t *Timestamp) UnmarshalJSON(data []byte) (err error) {
+	str := string(data)
+	i, err := strconv.ParseInt(str, 10, 64)
+	if err == nil {
+		(*t).Time = time.Unix(i, 0)
+	} else {
+		(*t).Time, err = time.Parse(`"`+time.RFC3339+`"`, str)
+	}
+	return
+}
+
+// Equal reports whether t and u are equal based on time.Equal
+func (t Timestamp) Equal(u Timestamp) bool {
+	return t.Time.Equal(u.Time)
+}