diff --git a/src/core/i18n.ts b/src/core/i18n.ts
index 3e91fe9..8dc18a0 100644
--- a/src/core/i18n.ts
+++ b/src/core/i18n.ts
@@ -244,6 +244,7 @@ export interface Translations {
     sunset: string;
     moonPhase: string;
     noLocation: string;
+    moonDay: string;
   };
 
   // Services
@@ -793,6 +794,7 @@ const translations: Record<LanguageCode, Translations> = {
       sunset: 'Sunset',
       moonPhase: 'Moon',
       noLocation: 'Set location in Settings',
+      moonDay: 'day',
     },
 
     services: {
@@ -1337,6 +1339,7 @@ const translations: Record<LanguageCode, Translations> = {
       sunset: 'Закат',
       moonPhase: 'Луна',
       noLocation: 'Укажите местоположение в настройках',
+      moonDay: 'день',
     },
 
     services: {
@@ -1881,6 +1884,7 @@ const translations: Record<LanguageCode, Translations> = {
       sunset: 'Закатъ',
       moonPhase: 'Лꙋна̀',
       noLocation: 'Оу҆кажі́те мѣстоположе́нїе въ настройкахъ',
+      moonDay: 'де́нь',
     },
 
     services: {
diff --git a/src/ui/calendar-view.ts b/src/ui/calendar-view.ts
index 07f3180..1ddd00a 100644
--- a/src/ui/calendar-view.ts
+++ b/src/ui/calendar-view.ts
@@ -953,7 +953,7 @@ export class CalendarView {
             <span class="text-navy">${solar?.sunset ?? '—'}</span>
             <span class="mx-2 text-gold/40">|</span>
             <span class="font-bold text-navy">${this.t.calendar.moonPhase}:</span>
-            <span class="text-navy">${moon.emoji} ${moonName} ${moon.trend === 'waxing' ? '↗' : '↘'} (day ${moon.moonDay}, ${phaseToFraction(moon.phase)}, ${moon.illumination}%)</span>
+            <span class="text-navy">${moon.emoji} ${moonName} ${moon.trend === 'waxing' ? '↗' : '↘'} (${this.t.calendar.moonDay} ${moon.moonDay}, ${phaseToFraction(moon.phase)}, ${moon.illumination}%)</span>
           `;
         } else {
           astroPanel.innerHTML = `<span class="text-navy-light italic">${this.t.calendar.noLocation}</span>`;