From be8d138cd09c79fc7bb52b32a329dec1c671ab44 Mon Sep 17 00:00:00 2001
From: AJ ONeal <coolaj86@gmail.com>
Date: Wed, 12 Jun 2019 08:39:58 +0000
Subject: [PATCH] initial commit (from keybase)

---
 index.js | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 index.js

diff --git a/index.js b/index.js
new file mode 100644
index 0000000..7fa72c9
--- /dev/null
+++ b/index.js
@@ -0,0 +1,27 @@
+/**
+ * take a date of assumed timezone and convert to utc
+ *
+ * @param {*} d
+ * @param {*} tz
+ * @returns
+ */
+function tzUTC(d, tz) {
+    // first calculate tz difference
+    var date = new Date();
+    var options = {
+        year: 'numeric',
+        month: 'numeric',
+        day: 'numeric',
+        hour: 'numeric',
+        minute: 'numeric',
+        second: 'numeric',
+        hour12: false,
+        timeZone: tz
+    };
+    var tzDate = new Intl.DateTimeFormat('en-US', options).format(date)
+    var diff = date - new Date(tzDate);
+    var minutes = Math.floor((diff / 1000) / 60);
+    var localTime = new Date(d);
+    localTime.setMinutes(d.getMinutes() + minutes);
+    return localTime.toUTCString();
+}
\ No newline at end of file