diff --git a/package.json b/package.json
index b1da21a..e12e17e 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "axios": "^0.18.0",
     "eslint-plugin-jest": "^21.12.3",
     "expo": "^25.0.0",
+    "moment": "^2.21.0",
     "native-base": "^2.3.9",
     "react": "16.2.0",
     "react-native": "0.52.0",
diff --git a/src/components/Chart/Chart.js b/src/components/Chart/Chart.js
index 39a5896..f375f6c 100644
--- a/src/components/Chart/Chart.js
+++ b/src/components/Chart/Chart.js
@@ -1,6 +1,7 @@
 // @flow
 
 import * as React from 'react'
+import moment from 'moment'
 import { Dimensions, StyleSheet, Text, View } from 'react-native'
 import {
   VictoryAxis,
@@ -139,19 +140,12 @@ class Chart extends React.Component<Props, State> {
               // ticks are >= 24 hours apart
               if (Math.abs(dates[adjacentIndex] - date) > 1000 * 60 * 60 * 24) {
                 const year = date.getFullYear()
-                return date.toLocaleString('en-US', {
-                  month: 'short',
-                  day: 'numeric',
-                  year: year !== currentYear ? 'numeric' : undefined,
-                })
+                const format = year !== currentYear ? 'l' : 'MMM D'
+                return moment(date).format(format)
               }
 
               const showMinutes = date.getMinutes() !== 0
-              return date.toLocaleString('en-US', {
-                hour: 'numeric',
-                minute: showMinutes ? 'numeric' : undefined,
-                hour12: true,
-              })
+              return moment(date).format(showMinutes ? 'LT' : 'h A')
             }}
           />
           <VictoryAxis
diff --git a/src/components/Controls/Controls.js b/src/components/Controls/Controls.js
index 8f77f60..37feb57 100644
--- a/src/components/Controls/Controls.js
+++ b/src/components/Controls/Controls.js
@@ -93,9 +93,7 @@ const styles = StyleSheet.create({
     display: 'flex',
     justifyContent: 'center',
     flexDirection: 'row',
-    height: 36,
-    marginTop: 10,
-    marginBottom: 10,
+    padding: 10,
   },
 })
 
diff --git a/yarn.lock b/yarn.lock
index 4f54f21..5fc45eb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5423,6 +5423,10 @@ moment@2.x.x, moment@^2.10.6:
   version "2.20.1"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.20.1.tgz#d6eb1a46cbcc14a2b2f9434112c1ff8907f313fd"
 
+moment@^2.21.0:
+  version "2.21.0"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.21.0.tgz#2a114b51d2a6ec9e6d83cf803f838a878d8a023a"
+
 morgan@~1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.6.1.tgz#5fd818398c6819cba28a7cd6664f292fe1c0bbf2"