diff --git a/utmp/goutmp.go b/utmp/goutmp.go
index 1ed357b..e91f073 100644
--- a/utmp/goutmp.go
+++ b/utmp/goutmp.go
@@ -6,7 +6,7 @@ import (
 )
 
 // Display time format
-const TimeFormat = time.RFC1123
+const TimeFormat = time.RFC3339Nano
 
 type GoExitStatus struct {
 	Termination int
@@ -40,7 +40,7 @@ func NewGoUtmp(u *Utmp) *GoUtmp {
 			Exit:        int(u.Exit.Exit),
 		},
 		Session: int(u.Session),
-		Time:    time.Unix(int64(u.Time.Sec), 0).Format(TimeFormat),
+		Time:    time.Unix(int64(u.Time.Sec), int64(u.Time.Usec*1000)).Format(TimeFormat),
 		Addr:    u.Addr().String(),
 	}
 }