diff --git a/locale/Messages.resx b/locale/Messages.resx
index b881996..ca48fba 100644
--- a/locale/Messages.resx
+++ b/locale/Messages.resx
@@ -654,4 +654,7 @@
   <data name="EightBallNegative5" xml:space="preserve">
       <value>Very doubtful</value>
   </data>
+  <data name="TimeSpanExample" xml:space="preserve">
+      <value>Example of a valid input: `1h30m`</value>
+  </data>
 </root>
diff --git a/locale/Messages.ru.resx b/locale/Messages.ru.resx
index cb318cd..7423347 100644
--- a/locale/Messages.ru.resx
+++ b/locale/Messages.ru.resx
@@ -654,4 +654,7 @@
   <data name="EightBallNegative5" xml:space="preserve">
       <value>Весьма сомнительно</value>
   </data>
+  <data name="TimeSpanExample" xml:space="preserve">
+      <value>Пример правильного ввода: `1ч30м`</value>
+  </data>
 </root>
diff --git a/locale/Messages.tt-ru.resx b/locale/Messages.tt-ru.resx
index f0b80a7..dc3bb6f 100644
--- a/locale/Messages.tt-ru.resx
+++ b/locale/Messages.tt-ru.resx
@@ -654,4 +654,7 @@
   <data name="EightBallNegative5" xml:space="preserve">
       <value>чот сомневаюсь</value>
   </data>
+  <data name="TimeSpanExample" xml:space="preserve">
+      <value>правильно пишут так: `1h30m`</value>
+  </data>
 </root>
diff --git a/src/Commands/BanCommandGroup.cs b/src/Commands/BanCommandGroup.cs
index 6dbf9b9..c350729 100644
--- a/src/Commands/BanCommandGroup.cs
+++ b/src/Commands/BanCommandGroup.cs
@@ -76,7 +76,8 @@ public class BanCommandGroup : CommandGroup
         [Description("User to ban")] IUser target,
         [Description("Ban reason")] [MaxLength(256)]
         string reason,
-        [Description("Ban duration")] string? duration = null)
+        [Description("Ban duration (e.g. 1h30m)")]
+        string? duration = null)
     {
         if (!_context.TryGetContextIDs(out var guildId, out var channelId, out var executorId))
         {
@@ -116,6 +117,7 @@ public class BanCommandGroup : CommandGroup
         {
             var failedEmbed = new EmbedBuilder()
                 .WithSmallTitle(Messages.InvalidTimeSpan, bot)
+                .WithDescription(Messages.TimeSpanExample)
                 .WithColour(ColorsList.Red)
                 .Build();
 
diff --git a/src/Commands/MuteCommandGroup.cs b/src/Commands/MuteCommandGroup.cs
index 788eb2c..c2542e8 100644
--- a/src/Commands/MuteCommandGroup.cs
+++ b/src/Commands/MuteCommandGroup.cs
@@ -73,7 +73,7 @@ public class MuteCommandGroup : CommandGroup
         [Description("Member to mute")] IUser target,
         [Description("Mute reason")] [MaxLength(256)]
         string reason,
-        [Description("Mute duration")] [Option("duration")]
+        [Description("Mute duration (e.g. 1h30m)")] [Option("duration")]
         string stringDuration)
     {
         if (!_context.TryGetContextIDs(out var guildId, out var channelId, out var executorId))
@@ -111,6 +111,7 @@ public class MuteCommandGroup : CommandGroup
         {
             var failedEmbed = new EmbedBuilder()
                 .WithSmallTitle(Messages.InvalidTimeSpan, bot)
+                .WithDescription(Messages.TimeSpanExample)
                 .WithColour(ColorsList.Red)
                 .Build();
 
diff --git a/src/Commands/RemindCommandGroup.cs b/src/Commands/RemindCommandGroup.cs
index c270f30..f9c006e 100644
--- a/src/Commands/RemindCommandGroup.cs
+++ b/src/Commands/RemindCommandGroup.cs
@@ -120,7 +120,7 @@ public class RemindCommandGroup : CommandGroup
     [RequireContext(ChannelContext.Guild)]
     [UsedImplicitly]
     public async Task<Result> ExecuteReminderAsync(
-        [Description("After what period of time mention the reminder")]
+        [Description("After what period of time mention the reminder (e.g. 1h30m)")]
         [Option("in")]
         string timeSpanString,
         [Description("Reminder text")] [MaxLength(512)]
@@ -151,6 +151,7 @@ public class RemindCommandGroup : CommandGroup
         {
             var failedEmbed = new EmbedBuilder()
                 .WithSmallTitle(Messages.InvalidTimeSpan, bot)
+                .WithDescription(Messages.TimeSpanExample)
                 .WithColour(ColorsList.Red)
                 .Build();
 
@@ -264,6 +265,7 @@ public class RemindCommandGroup : CommandGroup
         {
             var failedEmbed = new EmbedBuilder()
                 .WithSmallTitle(Messages.InvalidTimeSpan, bot)
+                .WithDescription(Messages.TimeSpanExample)
                 .WithColour(ColorsList.Red)
                 .Build();
 
diff --git a/src/Commands/ToolsCommandGroup.cs b/src/Commands/ToolsCommandGroup.cs
index 3c16232..ea91e1e 100644
--- a/src/Commands/ToolsCommandGroup.cs
+++ b/src/Commands/ToolsCommandGroup.cs
@@ -461,6 +461,7 @@ public class ToolsCommandGroup : CommandGroup
         {
             var failedEmbed = new EmbedBuilder()
                 .WithSmallTitle(Messages.InvalidTimeSpan, bot)
+                .WithDescription(Messages.TimeSpanExample)
                 .WithColour(ColorsList.Red)
                 .Build();
 
diff --git a/src/Messages.Designer.cs b/src/Messages.Designer.cs
index 9597bcd..ca460cf 100644
--- a/src/Messages.Designer.cs
+++ b/src/Messages.Designer.cs
@@ -1178,5 +1178,11 @@ namespace Octobot {
                 return ResourceManager.GetString("EightBallNegative5", resourceCulture);
             }
         }
+
+        internal static string TimeSpanExample {
+            get {
+                return ResourceManager.GetString("TimeSpanExample", resourceCulture);
+            }
+        }
     }
 }