diff --git a/assets/js/components/DatePicker.js b/assets/js/components/DatePicker.js
index 21b27f5..88c5ffd 100644
--- a/assets/js/components/DatePicker.js
+++ b/assets/js/components/DatePicker.js
@@ -38,11 +38,11 @@ class DatePicker extends Component {
   @bind
   setTimeRange(period) {
     let beforeDate = new Date();
-    beforeDate.setUTCHours(24);
+    beforeDate.setHours(24);
     beforeDate.setMinutes(0);
 
     let afterDate = new Date();
-    afterDate.setUTCHours(0);
+    afterDate.setHours(0);
     afterDate.setMinutes(0);
     switch(period) {
       case "week":
diff --git a/cmd/fathom/main.go b/cmd/fathom/main.go
index f5c1135..960a79a 100644
--- a/cmd/fathom/main.go
+++ b/cmd/fathom/main.go
@@ -18,6 +18,10 @@ type App struct {
 var app *App
 
 func main() {
+	// force all times in UTC, regardless of server timezone
+	os.Setenv("TZ", "")
+
+	// setup CLI app
 	app = &App{cli.NewApp(), nil, nil}
 	app.Name = "Fathom"
 	app.Usage = "simple & transparent website analytics"
@@ -70,7 +74,6 @@ func main() {
 func before(c *cli.Context) error {
 	app.config = config.Parse(c.String("config"))
 	app.database = datastore.New(app.config.Database)
-
 	return nil
 }