From 218ab9373720aa2754a8d27e0667420d6c74adf6 Mon Sep 17 00:00:00 2001
From: Arthur Edelstein <arthuredelstein@gmail.com>
Date: Sat, 14 Jan 2017 01:58:14 -0800
Subject: [PATCH] Bug 20981: On Windows, check TZ for timezone first

---
 intl/icu/source/common/putil.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/intl/icu/source/common/putil.cpp b/intl/icu/source/common/putil.cpp
index 03f6548689d23..63c1789512c24 100644
--- a/intl/icu/source/common/putil.cpp
+++ b/intl/icu/source/common/putil.cpp
@@ -1013,6 +1013,11 @@ uprv_tzname(int n)
 {
     const char *tzid = NULL;
 #if U_PLATFORM_USES_ONLY_WIN32_API
+    char* envValue = getenv("TZ");
+    if (envValue != NULL) {
+        return uprv_strdup(envValue);
+    }
+
     tzid = uprv_detectWindowsTimeZone();
 
     if (tzid != NULL) {
-- 
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