diff --git a/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberInfoOperation.cs b/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberInfoOperation.cs
index 1a6598a6c..4038532ba 100644
--- a/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberInfoOperation.cs
+++ b/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberInfoOperation.cs
@@ -22,8 +22,8 @@ public async Task<OneBotResult> HandleOperation(BotContext context, JsonObject?
                     result.Uin,
                     result.Permission.ToString().ToLower(), 
                     result.GroupLevel.ToString(), result.MemberCard, result.MemberName, 
-                    (uint)new DateTimeOffset(result.JoinTime).ToUnixTimeMilliseconds(), 
-                    (uint)new DateTimeOffset(result.LastMsgTime).ToUnixTimeMilliseconds()), 
+                    (uint)new DateTimeOffset(result.JoinTime).ToUnixTimeSeconds(), 
+                    (uint)new DateTimeOffset(result.LastMsgTime).ToUnixTimeSeconds()), 
                     0, "ok");
         }
 
diff --git a/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberListOperation.cs b/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberListOperation.cs
index 6b1150c4d..0007401a5 100644
--- a/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberListOperation.cs
+++ b/Lagrange.OneBot/Core/Operation/Info/GetGroupMemberListOperation.cs
@@ -15,7 +15,7 @@ public async Task<OneBotResult> HandleOperation(BotContext context, JsonObject?
         if (payload.Deserialize<OneBotGetGroupMemberInfo>() is { } message)
         {
             var result = await context.FetchMembers(message.GroupId, message.NoCache);
-            return new OneBotResult(result.Select(x => new OneBotGroupMember(message.GroupId, x.Uin, x.Permission.ToString().ToLower(), x.GroupLevel.ToString(), x.MemberCard, x.MemberName, (uint)new DateTimeOffset(x.JoinTime).ToUnixTimeMilliseconds(), (uint)new DateTimeOffset(x.LastMsgTime).ToUnixTimeMilliseconds())), 0, "ok");
+            return new OneBotResult(result.Select(x => new OneBotGroupMember(message.GroupId, x.Uin, x.Permission.ToString().ToLower(), x.GroupLevel.ToString(), x.MemberCard, x.MemberName, (uint)new DateTimeOffset(x.JoinTime).ToUnixTimeSeconds(), (uint)new DateTimeOffset(x.LastMsgTime).ToUnixTimeSeconds())), 0, "ok");
         }
 
         throw new Exception();