diff --git a/src/github.com/matrix-org/dendrite/common/log.go b/src/github.com/matrix-org/dendrite/common/log.go
index acae9ee7..625ef20a 100644
--- a/src/github.com/matrix-org/dendrite/common/log.go
+++ b/src/github.com/matrix-org/dendrite/common/log.go
@@ -11,7 +11,7 @@ import (
 // SetupLogging configures the logging format and destination(s).
 func SetupLogging(logDir string) {
 	formatter := &logrus.TextFormatter{
-		TimestampFormat:  "2006-01-02 15:04:05.000000",
+		TimestampFormat:  "2006-01-02T15:04:05.000000000Z07:00",
 		DisableColors:    true,
 		DisableTimestamp: false,
 		DisableSorting:   false,