Index: binaries/data/mods/public/gui/common/datetime.js
===================================================================
--- /dev/null
+++ binaries/data/mods/public/gui/common/datetime.js
@@ -0,0 +1,20 @@
+function datetimeToString(datetime, showSeconds = false)
+{
+	return showSeconds ?
+		// Translation: Format of the local datetime as shown for example in the load game, save game, and replay menus.
+		// For a list of symbols that you can use, see:
+		// http://userguide.icu-project.org/formatparse/datetime#TOC-Date-Field-Symbol-Table
+		Engine.FormatMillisecondsIntoDateStringLocal(datetime, translateWithContext("datetime, with seconds", "yyyy-MM-dd HH:mm:ss")) :
+		// Translation: Format of the local datetime as shown for example in the load game, save game, and replay menus.
+		// For a list of symbols that you can use, see:
+		// http://userguide.icu-project.org/formatparse/datetime#TOC-Date-Field-Symbol-Table
+		Engine.FormatMillisecondsIntoDateStringLocal(datetime, translateWithContext("datetime, without seconds", "yyyy-MM-dd HH:mm"));
+}
+
+function monthToString(datetime)
+{
+	// Translation: Format of the local date (month) as shown for example in the date filter dropdown in the replay menu.
+	// For a list of symbols that you can use, see:
+	// http://userguide.icu-project.org/formatparse/datetime#TOC-Date-Field-Symbol-Table
+	return Engine.FormatMillisecondsIntoDateStringLocal(datetime, translateWithContext("date month", "yyyy-MM"));
+}
Index: binaries/data/mods/public/gui/common/functions_utility_loadsave.js
===================================================================
--- binaries/data/mods/public/gui/common/functions_utility_loadsave.js
+++ binaries/data/mods/public/gui/common/functions_utility_loadsave.js
@@ -11,9 +11,7 @@
 
 function generateSavegameDateString(metadata, engineInfo)
 {
-	return compatibilityColor(
-		Engine.FormatMillisecondsIntoDateStringLocal(metadata.time * 1000, translate("yyyy-MM-dd HH:mm:ss")),
-		isCompatibleSavegame(metadata, engineInfo));
+	return compatibilityColor(datetimeToString(metadata.time * 1000, true), isCompatibleSavegame(metadata, engineInfo));
 }
 
 function generateSavegameLabel(metadata, engineInfo)
Index: binaries/data/mods/public/gui/replaymenu/replay_menu.js
===================================================================
--- binaries/data/mods/public/gui/replaymenu/replay_menu.js
+++ binaries/data/mods/public/gui/replaymenu/replay_menu.js
@@ -296,7 +296,7 @@
  */
 function getReplayDateTime(replay)
 {
-	return Engine.FormatMillisecondsIntoDateStringLocal(replay.attribs.timestamp * 1000, translate("yyyy-MM-dd HH:mm"));
+	return datetimeToString(replay.attribs.timestamp * 1000);
 }
 
 /**
@@ -320,13 +320,13 @@
 }
 
 /**
- * Returns the month of the given replay in the format "yyyy-MM".
+ * Returns a human-readable version of the month of the given replay.
  *
  * @returns {string}
  */
 function getReplayMonth(replay)
 {
-	return Engine.FormatMillisecondsIntoDateStringLocal(replay.attribs.timestamp * 1000, translate("yyyy-MM"));
+	return monthToString(replay.attribs.timestamp * 1000);
 }
 
 /**