initial commit (from keybase)

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();
+}