X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/timetracker.git/blobdiff_plain/13cfff28242767287408e8fd13d992bc6c6e2086..d750614c66f49bf68fd660a67a7d3805578238fc:/WEB-INF/lib/ttTimeHelper.class.php

diff --git a/WEB-INF/lib/ttTimeHelper.class.php b/WEB-INF/lib/ttTimeHelper.class.php
index 8142a266..44d96785 100644
--- a/WEB-INF/lib/ttTimeHelper.class.php
+++ b/WEB-INF/lib/ttTimeHelper.class.php
@@ -188,8 +188,11 @@ class ttTimeHelper {
 
   // toMinutes - converts a time string in format 00:00 to a number of minutes.
   static function toMinutes($value) {
+    $signMultiplier = ttStartsWith($value, '-') ? -1 : 1;
+    if ($signMultiplier == -1) $duration = ltrim($duration, '-');
+
     $time_a = explode(':', $value);
-    return (int)@$time_a[1] + ((int)@$time_a[0]) * 60;
+    return $signMultiplier * ((int)@$time_a[1] + ((int)@$time_a[0]) * 60);
   }
 
   // toAbsDuration - converts a number of minutes to format 0:00