From 80b064f97b0429c4efa9abc7c045c26b3ab3e640 Mon Sep 17 00:00:00 2001
From: Jason Hood <jadoxa@yahoo.com.au>
Date: Thu, 14 Feb 2019 18:42:51 +1000
Subject: [PATCH] Make UTC time on Windows

Windows has `_mkgmtime` for the UTC equivalent of `mktime`.
---
 src/builtin.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/builtin.c b/src/builtin.c
index 3cde61a3..eb2cd876 100644
--- a/src/builtin.c
+++ b/src/builtin.c
@@ -1238,6 +1238,8 @@ static time_t my_mktime(struct tm *tm) {
   if (t == (time_t)-1)
     return t;
   return t + tm->__tm_gmtoff;
+#elif WIN32
+  return _mkgmtime(tm);
 #else
   char *tz;