this makes timezones work.. why this exact same code didn't work earlier

is beyond me...

Makefile

@@ -17,9 +17,8 @@ JSFILES = root/js/solardash.file.js root/js/solardash.https.js root/js/solardash
 THIRDPARTYJS = \
 	root/js/jquery.js \
 	root/js/highstock.js \
-
-#	root/js/moment.min.js \
-#	root/js/moment-timezone-with-data.min.js
+	root/js/moment.min.js \
+	root/js/moment-timezone-with-data.min.js
 
 root/js/jquery.js:
 	wget -O $@ "https://code.jquery.com/jquery-3.4.1.min.js" || (rm "$@"; false)

root/js/solardash.base.js

@@ -1,8 +1,8 @@
-//Highcharts.setOptions({
-//    time: {
-//        timezone: 'America/Los_Angeles'
-//    }
-//});
+Highcharts.setOptions({
+	time: {
+		timezone: 'America/Los_Angeles'
+	}
+});
 
 socket.onopen = function() {
 	// connected