diff --git a/du3/program.c b/du3/program.c
index 02b7d7e..b2d1e90 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -4,15 +4,36 @@
 #include <string.h>
 #include <time.h>
 
-int ValidateTime(int hh , int mm , int ss)
+int ValidateTime(int dd , int mm , int yy)
 {
-    int ret=0;
-    
-    if(hh>24)   ret=1;
-    if(mm>60)   ret=1;
-    if(ss>60)   ret=1;
-    
-    return ret;
+    int res = 0;
+    if(yy>=1900 && yy<=9999)
+    {
+        //check month
+        if(mm>=1 && mm<=12)
+        {
+            //check days
+            if((dd>=1 && dd<=31) && (mm==1 || mm==3 || mm==5 || mm==7 || mm==8 || mm==10 || mm==12))
+                res = 1;
+            else if((dd>=1 && dd<=30) && (mm==4 || mm==6 || mm==9 || mm==11))
+                res = 1;
+            else if((dd>=1 && dd<=28) && (mm==2))
+                res = 1;
+            else if(dd==29 && mm==2 && (yy%400==0 ||(yy%4==0 && yy%100!=0)))
+                res = 1;
+            else
+                res = 0;
+        }
+        else
+        {
+            res = 0;
+        }
+    }
+    else
+    {
+        res = 0;
+    }
+    retrun res;
 }
 
 int main()
@@ -20,12 +41,13 @@ int main()
     
     char dateStr[11];
     struct tm t;
-    int hour = 0, min = 0, secs = 0;
+    int dd = 0, mm = 0, yy = 0;
     
     fgets(dateStr, 11, stdin);
-    sscanf(dateStr , "%d:%d:%d" , &hour,&min,&secs);
-    if(!ValidateTime(hour,min,secs)){
+    sscanf(dateStr , "%d.%d.%d" , &dd,&mm,&yy);
+    if(!ValidateTime(dd,mm,yy)){
         printf("Nespravny datum\n");
+        return 1;
     }
     char* res = strptime(dateStr, "%d.%m.%Y", &t);
     if (res == NULL) {