From f2e93268d76cdee815a4f69da27cba5263b07031 Mon Sep 17 00:00:00 2001
From: "Peter J. Holzer" <hjp@wsr.ac.at>
Date: Mon, 8 Aug 2016 14:00:42 +0200
Subject: [PATCH] Allow timezone spec without minutes

---
 TimeSeries.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/TimeSeries.pm b/TimeSeries.pm
index 1206403..3759090 100644
--- a/TimeSeries.pm
+++ b/TimeSeries.pm
@@ -113,7 +113,8 @@ sub add_timestring {
     my $timestamp;
     if (defined ($zone)) {
 	# adjust for timezone
-	my ($zs, $zh, $zm) = $zone =~ /([+-])(\d\d)(\d\d)/;
+	my ($zs, $zh, $zm) = $zone =~ /([+-])(\d\d)(\d\d)?/;
+        $zm //= 0;
 	$min -= ($zs eq '-' ? -1 : +1) * ($zh * 60 + $zm);
 	$timestamp = timegm_nocheck($sec, $min, $hour, $day, $mon-1, $year);
     } else {