# HG changeset patch
# User Aleksej Bobylev <al.bobylev@gmail.com>
# Date 1487729132 -7200
# Node ID 24e5d2229a915422fdaeb2f4779ea6939e2099bf
# Parent  50421cb5064482db796ae73ef6eb74a6f580e0a5
modules/summary: fix $((arithmetic))
Busybox ash vs. Bash problem?

diff -r 50421cb50644 -r 24e5d2229a91 modules/summary
--- a/modules/summary	Sun Feb 19 18:05:03 2017 +0000
+++ b/modules/summary	Wed Feb 22 04:05:32 2017 +0200
@@ -40,8 +40,15 @@
 	if [ -e "$IDs" ]; then
 		# Timezone offset as string, ex. '+0200' for EET (+2 hours)
 		ohhmm=$(date +%z)
+			# offset sign (1; -1)
+			osign="${ohhmm:0:1}1"; osign=${osign#+}
+			# offset hours (without leading 0)
+			ohh=${ohhmm:1:2}; ohh=${ohh#0}
+			# offset minutes (without leading 0)
+			omm=${ohhmm:3:2}; omm=${omm#0}
 		# Timezone offset in the seconds
-		offset=$(( 60 * (60 * ${ohhmm:0:3} + ${ohhmm:3:2}) ))
+		offset=$(( 60 * (60 * $osign * $ohh + $omm) ))
+
 		daynow=$(( ($(date         +%s) + $offset) / 86400 ))
 		dayupd=$(( ($(date -r $IDs +%s) + $offset) / 86400 ))
 		days=$(( $daynow - $dayupd ))