diff --git a/README.md b/README.md
index 85c8f52..3081517 100644
--- a/README.md
+++ b/README.md
@@ -84,10 +84,16 @@ To set the time and restart the main application:
 
 ~~~
 ^C
-watch.rtc.set_time((hh, mm, ss))
+watch.rtc.set_localtime((yyyy, mm, dd, HH, MM, SS))
 wasp.run()
 ~~~
 
+Or just use:
+~~~
+./tools/wasptool --rtc
+~~~
+which can run these commands automatically.
+
 As mentioned above there are many drivers and features still to be
 developed, see the [TODO list](TODO.md) for current status.