diff --git a/web/site/mustard/include/parsetime.php b/web/site/mustard/include/parsetime.php
new file mode 100644
index 0000000..9b6bfc1
--- /dev/null
+++ b/web/site/mustard/include/parsetime.php
@@ -0,0 +1,27 @@
+<?php
+
+function parsetime($str) {
+	$str=explode(',',$str);
+	$secs=0;
+	foreach ($str as $ent) {
+		if (preg_match('/^(\d+)([smhdwMy])$/',$ent,$mat)!==1)
+			return(false);
+		if ($mat[2]=='s')
+			$secs+=$mat[1];
+		elseif ($mat[2]=='m')
+			$secs+=$mat[1]*60;
+		elseif ($mat[2]=='h')
+			$secs+=$mat[1]*60*60;
+		elseif ($mat[2]=='d')
+			$secs+=$mat[1]*60*60*24;
+		elseif ($mat[2]=='w')
+			$secs+=$mat[1]*60*60*24*7;
+		elseif ($mat[2]=='M')
+			$secs+=$mat[1]*60*60*24*31;
+		elseif ($mat[2]=='y')
+			$secs+=$mat[1]*60*60*24*365;
+	}
+	return($secs);
+}
+
+?>