From 397eb175cdd427a2bd531a59da2c556b0ed6d23f Mon Sep 17 00:00:00 2001
From: Raimund Bauer <ray007@gmx.net>
Date: Wed, 28 Dec 2016 09:26:28 +0100
Subject: [PATCH] Fix offset for format %z

---
 strftime.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/strftime.js b/strftime.js
index c487a17..179f195 100644
--- a/strftime.js
+++ b/strftime.js
@@ -156,7 +156,7 @@
             var timestamp;
 
             if (!date) {
-                var currentTimestamp = Date.now();
+                var currentTimestamp = Date.now(), origOff = 0;
                 if (currentTimestamp > _cachedDateTimestamp) {
                     _cachedDateTimestamp = currentTimestamp;
                     _cachedDate = new Date(_cachedDateTimestamp);
@@ -168,11 +168,13 @@
                         // we tied to getTimezoneOffset of the current date
                         //_cachedDate = new Date(_cachedDateTimestamp + getTimestampToUtcOffsetFor(_cachedDate) + _customTimezoneOffset);
                     } else {
+                        origOff = _cachedDate.getTimezoneOffset() * -60000;
                         _cachedDate = new Date(_cachedDateTimestamp - getTimestampToUtcOffsetFor(_cachedDate) - _customTimezoneOffset);
+                        _customTimezoneOffset = origOff;
                     }
                 }
                 else {
-                  timestamp = _cachedDateTimestamp;
+                timestamp = _cachedDateTimestamp;
                 }
                 date = _cachedDate;
             }
@@ -182,7 +184,9 @@
                 if (_useUtcBasedDate) {
                     //date = new Date(date.getTime() + getTimestampToUtcOffsetFor(date) + _customTimezoneOffset);
                 } else {
+                    origOff = date.getTimezoneOffset() * -60000;
                     date = new Date(date.getTime() - getTimestampToUtcOffsetFor(date) - _customTimezoneOffset);
+                    _customTimezoneOffset = origOff;
                 }
             }