diff --git a/res/values/strings.xml b/res/values/strings.xml
index 50eb3c8778b..d09beab802f 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -8825,10 +8825,16 @@
     <string name="billing_cycle_less_than_one_day_left">Less than 1 day left</string>
 
     <!-- Informational text about carrier and update time [CHAR LIMIT=30] -->
-    <string name="carrier_and_update_text">Updated by <xliff:g name="carrier" example="T-mobile">%1$s</xliff:g> <xliff:g name="time" example="3m">%2$s</xliff:g></string>
+    <string name="carrier_and_update_text">Updated by <xliff:g name="carrier" example="T-mobile">^1</xliff:g> <xliff:g name="time" example="3m">^2</xliff:g> ago</string>
 
-    <!-- Informational text about update time only, without carrier [CHAR LIMIT=30] -->
-    <string name="no_carrier_update_text">Updated <xliff:g name="time" example="3m">%1$s</xliff:g></string>
+    <!-- Informational text about update time only, without carrier. First argument intentionally skipped. [CHAR LIMIT=30] -->
+    <string name="no_carrier_update_text">Updated <xliff:g name="time" example="3m">^2</xliff:g> ago</string>
+
+    <!-- Informational text about a recent carrier and update time [CHAR LIMIT=30] -->
+    <string name="carrier_and_update_now_text">Updated by <xliff:g name="carrier" example="T-mobile">^1</xliff:g> just now</string>
+
+    <!-- Informational text about recent update time only, without carrier [CHAR LIMIT=30] -->
+    <string name="no_carrier_update_now_text">Updated just now</string>
 
     <!-- Button to launch external data plan app [CHAR LIMIT=30] -->
     <string name="launch_mdp_app_text">View plan</string>
diff --git a/src/com/android/settings/datausage/DataUsageSummaryPreference.java b/src/com/android/settings/datausage/DataUsageSummaryPreference.java
index 2c61e21957e..6b00a6891a3 100644
--- a/src/com/android/settings/datausage/DataUsageSummaryPreference.java
+++ b/src/com/android/settings/datausage/DataUsageSummaryPreference.java
@@ -16,8 +16,10 @@
 
 package com.android.settings.datausage;
 
+import android.annotation.AttrRes;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.Typeface;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceViewHolder;
 import android.text.Spannable;
@@ -31,6 +33,7 @@ import android.widget.Button;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.settings.R;
 import com.android.settingslib.Utils;
 import com.android.settingslib.utils.StringUtil;
@@ -44,6 +47,8 @@ import java.util.concurrent.TimeUnit;
 public class DataUsageSummaryPreference extends Preference {
     private static final long MILLIS_IN_A_DAY = TimeUnit.DAYS.toMillis(1);
     private static final long WARNING_AGE = TimeUnit.HOURS.toMillis(6L);
+    @VisibleForTesting static final Typeface SANS_SERIF_MEDIUM =
+            Typeface.create("sans-serif-medium", Typeface.NORMAL);
 
     private boolean mChartEnabled = true;
     private String mStartLabel;
@@ -217,24 +222,64 @@ public class DataUsageSummaryPreference extends Preference {
 
     private void updateCarrierInfo(TextView carrierInfo) {
         if (mNumPlans > 0 && mSnapshotTimeMs >= 0L) {
-            long updateAge = System.currentTimeMillis() - mSnapshotTimeMs;
             carrierInfo.setVisibility(View.VISIBLE);
-            if (mCarrierName != null) {
-                carrierInfo.setText(getContext().getString(R.string.carrier_and_update_text,
-                        mCarrierName, StringUtil.formatRelativeTime(
-                                getContext(), updateAge, false /* withSeconds */)));
-            } else {
-                carrierInfo.setText(getContext().getString(R.string.no_carrier_update_text,
-                        StringUtil.formatRelativeTime(
-                                getContext(), updateAge, false /* withSeconds */)));
-            }
+            long updateAgeMillis = calculateTruncatedUpdateAge();
 
-            carrierInfo.setTextColor(
-                    updateAge <= WARNING_AGE
-                    ? Utils.getColorAttr(getContext(), android.R.attr.textColorPrimary)
-                    : Utils.getColorAttr(getContext(), android.R.attr.colorError));
+            int textResourceId;
+            CharSequence updateTime = null;
+            if (updateAgeMillis == 0) {
+                if (mCarrierName != null) {
+                    textResourceId = R.string.carrier_and_update_now_text;
+                } else {
+                    textResourceId = R.string.no_carrier_update_now_text;
+                }
+            } else {
+                if (mCarrierName != null) {
+                    textResourceId = R.string.carrier_and_update_text;
+                } else {
+                    textResourceId = R.string.no_carrier_update_text;
+                }
+                updateTime = StringUtil.formatElapsedTime(
+                        getContext(), updateAgeMillis, false /* withSeconds */);
+            }
+            carrierInfo.setText(TextUtils.expandTemplate(
+                    getContext().getText(textResourceId),
+                    mCarrierName,
+                    updateTime));
+
+            if (updateAgeMillis <= WARNING_AGE) {
+                setCarrierInfoTextStyle(
+                        carrierInfo, android.R.attr.textColorSecondary, Typeface.SANS_SERIF);
+            } else {
+                setCarrierInfoTextStyle(carrierInfo, android.R.attr.colorError, SANS_SERIF_MEDIUM);
+            }
         } else {
             carrierInfo.setVisibility(View.GONE);
         }
     }
+
+    /**
+     * Returns the time since the last carrier update, as defined by {@link #mSnapshotTimeMs},
+     * truncated to the nearest day / hour / minute in milliseconds, or 0 if less than 1 min.
+     */
+    private long calculateTruncatedUpdateAge() {
+        long updateAgeMillis = System.currentTimeMillis() - mSnapshotTimeMs;
+
+        // Round to nearest whole unit
+        if (updateAgeMillis >= TimeUnit.DAYS.toMillis(1)) {
+            return (updateAgeMillis / TimeUnit.DAYS.toMillis(1)) * TimeUnit.DAYS.toMillis(1);
+        } else if (updateAgeMillis >= TimeUnit.HOURS.toMillis(1)) {
+            return (updateAgeMillis / TimeUnit.HOURS.toMillis(1)) * TimeUnit.HOURS.toMillis(1);
+        } else if (updateAgeMillis >= TimeUnit.MINUTES.toMillis(1)) {
+            return (updateAgeMillis / TimeUnit.MINUTES.toMillis(1)) * TimeUnit.MINUTES.toMillis(1);
+        } else {
+            return 0;
+        }
+    }
+
+    private void setCarrierInfoTextStyle(
+            TextView carrierInfo, @AttrRes int colorId, Typeface typeface) {
+        carrierInfo.setTextColor(Utils.getColorAttr(getContext(), colorId));
+        carrierInfo.setTypeface(typeface);
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/datausage/DataUsageSummaryPreferenceTest.java b/tests/robotests/src/com/android/settings/datausage/DataUsageSummaryPreferenceTest.java
index bfa296b6af1..072f558364c 100644
--- a/tests/robotests/src/com/android/settings/datausage/DataUsageSummaryPreferenceTest.java
+++ b/tests/robotests/src/com/android/settings/datausage/DataUsageSummaryPreferenceTest.java
@@ -16,8 +16,11 @@
 
 package com.android.settings.datausage;
 
+import static com.google.common.truth.Truth.assertThat;
+
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.Typeface;
 import android.support.v7.preference.PreferenceViewHolder;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -30,8 +33,6 @@ import com.android.settings.R;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 import com.android.settings.testutils.shadow.SettingsShadowResourcesImpl;
 import com.android.settingslib.Utils;
-import com.android.settingslib.utils.StringUtil;
-import java.util.concurrent.TimeUnit;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -42,8 +43,6 @@ import org.robolectric.annotation.Config;
 
 import java.util.concurrent.TimeUnit;
 
-import static com.google.common.truth.Truth.assertThat;
-
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(shadows = SettingsShadowResourcesImpl.class)
 public class DataUsageSummaryPreferenceTest {
@@ -123,7 +122,88 @@ public class DataUsageSummaryPreferenceTest {
     }
 
     @Test
-    public void testSetUsageInfo_withRecentCarrierUpdate_doesNotSetCarrierInfoWarningColor() {
+    public void testCarrierUpdateTime_shouldFormatDaysCorrectly() {
+        int baseUnit = 2;
+        int smudge = 6;
+        final long updateTime = System.currentTimeMillis()
+                - TimeUnit.DAYS.toMillis(baseUnit) - TimeUnit.HOURS.toMillis(smudge);
+        mCarrierInfo = (TextView) mHolder.findViewById(R.id.carrier_and_update);
+        mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, DUMMY_CARRIER, 1 /* numPlans */,
+                new Intent());
+
+        bindViewHolder();
+        assertThat(mCarrierInfo.getText().toString())
+                .isEqualTo("Updated by " + DUMMY_CARRIER + " " + baseUnit + "d ago");
+    }
+
+    @Test
+    public void testCarrierUpdateTime_shouldFormatHoursCorrectly() {
+        int baseUnit = 2;
+        int smudge = 6;
+        final long updateTime = System.currentTimeMillis()
+                - TimeUnit.HOURS.toMillis(baseUnit) - TimeUnit.MINUTES.toMillis(smudge);
+        mCarrierInfo = (TextView) mHolder.findViewById(R.id.carrier_and_update);
+        mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, DUMMY_CARRIER, 1 /* numPlans */,
+                new Intent());
+
+        bindViewHolder();
+        assertThat(mCarrierInfo.getText().toString())
+                .isEqualTo("Updated by " + DUMMY_CARRIER + " " + baseUnit + "h ago");
+    }
+
+    @Test
+    public void testCarrierUpdateTime_shouldFormatMinutesCorrectly() {
+        int baseUnit = 2;
+        int smudge = 6;
+        final long updateTime = System.currentTimeMillis()
+                - TimeUnit.MINUTES.toMillis(baseUnit) - TimeUnit.SECONDS.toMillis(smudge);
+        mCarrierInfo = (TextView) mHolder.findViewById(R.id.carrier_and_update);
+        mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, DUMMY_CARRIER, 1 /* numPlans */,
+                new Intent());
+
+        bindViewHolder();
+        assertThat(mCarrierInfo.getText().toString())
+                .isEqualTo("Updated by " + DUMMY_CARRIER + " " + baseUnit + "m ago");
+    }
+
+    @Test
+    public void testCarrierUpdateTime_shouldFormatLessThanMinuteCorrectly() {
+        final long updateTime = System.currentTimeMillis() - TimeUnit.SECONDS.toMillis(45);
+        mCarrierInfo = (TextView) mHolder.findViewById(R.id.carrier_and_update);
+        mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, DUMMY_CARRIER, 1 /* numPlans */,
+                new Intent());
+
+        bindViewHolder();
+        assertThat(mCarrierInfo.getText().toString())
+                .isEqualTo("Updated by " + DUMMY_CARRIER + " just now");
+    }
+
+    @Test
+    public void testCarrierUpdateTimeWithNoCarrier_shouldSayJustNow() {
+        final long updateTime = System.currentTimeMillis() - TimeUnit.SECONDS.toMillis(45);
+        mCarrierInfo = (TextView) mHolder.findViewById(R.id.carrier_and_update);
+        mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, null /* carrier */,
+                1 /* numPlans */, new Intent());
+
+        bindViewHolder();
+        assertThat(mCarrierInfo.getText().toString())
+                .isEqualTo("Updated just now");
+    }
+
+    @Test
+    public void testCarrierUpdateTimeWithNoCarrier_shouldFormatTime() {
+        final long updateTime = System.currentTimeMillis() - TimeUnit.MINUTES.toMillis(2);
+        mCarrierInfo = (TextView) mHolder.findViewById(R.id.carrier_and_update);
+        mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, null /* carrier */,
+                1 /* numPlans */, new Intent());
+
+        bindViewHolder();
+        assertThat(mCarrierInfo.getText().toString())
+                .isEqualTo("Updated 2m ago");
+    }
+
+    @Test
+    public void testSetUsageInfo_withRecentCarrierUpdate_doesNotSetCarrierInfoWarningColorAndFont() {
         final long updateTime = System.currentTimeMillis() - TimeUnit.HOURS.toMillis(1);
         mCarrierInfo = (TextView) mHolder.findViewById(R.id.carrier_and_update);
         mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, DUMMY_CARRIER, 1 /* numPlans */,
@@ -132,11 +212,12 @@ public class DataUsageSummaryPreferenceTest {
         bindViewHolder();
         assertThat(mCarrierInfo.getVisibility()).isEqualTo(View.VISIBLE);
         assertThat(mCarrierInfo.getCurrentTextColor()).isEqualTo(
-                Utils.getColorAttr(mContext, android.R.attr.textColorPrimary));
+                Utils.getColorAttr(mContext, android.R.attr.textColorSecondary));
+        assertThat(mCarrierInfo.getTypeface()).isEqualTo(Typeface.SANS_SERIF);
     }
 
     @Test
-    public void testSetUsageInfo_withStaleCarrierUpdate_setsCarrierInfoWarningColor() {
+    public void testSetUsageInfo_withStaleCarrierUpdate_setsCarrierInfoWarningColorAndFont() {
         final long updateTime = System.currentTimeMillis() - TimeUnit.HOURS.toMillis(7);
         mSummaryPreference.setUsageInfo(mCycleEnd, updateTime, DUMMY_CARRIER, 1 /* numPlans */,
                 new Intent());
@@ -145,6 +226,8 @@ public class DataUsageSummaryPreferenceTest {
         assertThat(mCarrierInfo.getVisibility()).isEqualTo(View.VISIBLE);
         assertThat(mCarrierInfo.getCurrentTextColor()).isEqualTo(
                 Utils.getColorAttr(mContext, android.R.attr.colorError));
+        assertThat(mCarrierInfo.getTypeface()).isEqualTo(
+                DataUsageSummaryPreference.SANS_SERIF_MEDIUM);
     }
 
     @Test
@@ -311,4 +394,4 @@ public class DataUsageSummaryPreferenceTest {
         mLabel2 = (TextView) mHolder.findViewById(R.id.text2);
         mProgressBar = (ProgressBar) mHolder.findViewById(R.id.determinateBar);
     }
-}
\ No newline at end of file
+}