diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/src/time/minute.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/src/time/minute.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,5 @@
+d3.time.minute = function(date) {
+  return new Date(~~(date / 6e4) * 6e4);
+};
+
+d3.time.minute.utc = d3.time.minute;
\ No newline at end of file