diff --git a/rslib/ftl/statistics.ftl b/rslib/ftl/statistics.ftl
index a9c3b6e79..01242568c 100644
--- a/rslib/ftl/statistics.ftl
+++ b/rslib/ftl/statistics.ftl
@@ -162,3 +162,16 @@ statistics-hours-subtitle = Review success rate for each hour of the day.
 # shown when graph is empty
 statistics-no-data = NO DATA
 statistics-calendar-title = Calendar
+
+## An amount of elapsed time, used in the graphs to show the amount of
+## time spent studying. For example, English would show "5s" for 5 seconds,
+## "13.5m" for 13.5 minutes, and so on.
+
+statistics-elapsed-time-seconds = {$amount}s
+statistics-elapsed-time-minutes = {$amount}m
+statistics-elapsed-time-hours = {$amount}h
+statistics-elapsed-time-days = {$amount}d
+statistics-elapsed-time-months = {$amount}mo
+statistics-elapsed-time-years = {$amount}y
+
+##
diff --git a/ts/src/stats/reviews.ts b/ts/src/stats/reviews.ts
index 540e629df..42b58764a 100644
--- a/ts/src/stats/reviews.ts
+++ b/ts/src/stats/reviews.ts
@@ -169,7 +169,7 @@ export function renderReviews(
                 .tickSizeOuter(0)
                 .tickFormat(((n: number): string => {
                     if (showTime) {
-                        return timeSpan(i18n, n / 1000);
+                        return timeSpan(i18n, n / 1000, true);
                     } else {
                         if (Math.round(n) != n) {
                             return "";
diff --git a/ts/src/time.ts b/ts/src/time.ts
index 6b1f709d4..cb627c583 100644
--- a/ts/src/time.ts
+++ b/ts/src/time.ts
@@ -70,15 +70,6 @@ function unitAmount(unit: TimespanUnit, secs: number): number {
     }
 }
 
-function unitAmountRounded(unit: TimespanUnit, secs: number): number {
-    const value = unitAmount(unit, secs);
-    if (unit === TimespanUnit.Seconds || unit === TimespanUnit.Days) {
-        return Math.round(value);
-    } else {
-        return value;
-    }
-}
-
 export function studiedToday(i18n: I18n, cards: number, secs: number): string {
     const unit = naturalUnit(secs);
     const amount = unitAmount(unit, secs);
@@ -96,40 +87,48 @@ export function studiedToday(i18n: I18n, cards: number, secs: number): string {
     });
 }
 
+function i18nKeyForUnit(i18n: I18n, unit: TimespanUnit, short: boolean): number {
+    if (short) {
+        switch (unit) {
+            case TimespanUnit.Seconds:
+                return i18n.TR.STATISTICS_ELAPSED_TIME_SECONDS;
+            case TimespanUnit.Minutes:
+                return i18n.TR.STATISTICS_ELAPSED_TIME_MINUTES;
+            case TimespanUnit.Hours:
+                return i18n.TR.STATISTICS_ELAPSED_TIME_HOURS;
+            case TimespanUnit.Days:
+                return i18n.TR.STATISTICS_ELAPSED_TIME_DAYS;
+            case TimespanUnit.Months:
+                return i18n.TR.STATISTICS_ELAPSED_TIME_MONTHS;
+            case TimespanUnit.Years:
+                return i18n.TR.STATISTICS_ELAPSED_TIME_YEARS;
+        }
+    } else {
+        switch (unit) {
+            case TimespanUnit.Seconds:
+                return i18n.TR.SCHEDULING_TIME_SPAN_SECONDS;
+            case TimespanUnit.Minutes:
+                return i18n.TR.SCHEDULING_TIME_SPAN_MINUTES;
+            case TimespanUnit.Hours:
+                return i18n.TR.SCHEDULING_TIME_SPAN_HOURS;
+            case TimespanUnit.Days:
+                return i18n.TR.SCHEDULING_TIME_SPAN_DAYS;
+            case TimespanUnit.Months:
+                return i18n.TR.SCHEDULING_TIME_SPAN_MONTHS;
+            case TimespanUnit.Years:
+                return i18n.TR.SCHEDULING_TIME_SPAN_YEARS;
+        }
+    }
+}
+
 /// Describe the given seconds using the largest appropriate unit.
 /// If precise is true, show to two decimal places, eg
 /// eg 70 seconds -> "1.17 minutes"
 /// If false, seconds and days are shown without decimals.
-export function timeSpan(i18n: I18n, seconds: number, precise = true): string {
+export function timeSpan(i18n: I18n, seconds: number, short = false): string {
     const unit = naturalUnit(seconds);
-    let amount: number;
-    if (precise) {
-        amount = unitAmount(unit, seconds);
-    } else {
-        amount = unitAmountRounded(unit, seconds);
-    }
-    let key: number;
-    switch (unit) {
-        case TimespanUnit.Seconds:
-            key = i18n.TR.SCHEDULING_TIME_SPAN_SECONDS;
-            break;
-        case TimespanUnit.Minutes:
-            key = i18n.TR.SCHEDULING_TIME_SPAN_MINUTES;
-            break;
-        case TimespanUnit.Hours:
-            key = i18n.TR.SCHEDULING_TIME_SPAN_HOURS;
-            break;
-        case TimespanUnit.Days:
-            key = i18n.TR.SCHEDULING_TIME_SPAN_DAYS;
-            break;
-        case TimespanUnit.Months:
-            key = i18n.TR.SCHEDULING_TIME_SPAN_MONTHS;
-            break;
-        case TimespanUnit.Years:
-            key = i18n.TR.SCHEDULING_TIME_SPAN_YEARS;
-            break;
-    }
-
+    const amount = unitAmount(unit, seconds);
+    const key = i18nKeyForUnit(i18n, unit, short);
     return i18n.tr(key, { amount });
 }