diff --git a/include/actiondep.h b/include/actiondep.h
index 08f7f35..50e2db5 100644
--- a/include/actiondep.h
+++ b/include/actiondep.h
@@ -85,29 +85,16 @@ template<class D> std::pair<TIndex, MString> GetTIndexes(const D& data, const CL
   if(beg > data.Time(nt - 1)) return {tindexes, "Begin time " + b.ToTString() + " is greater then end time in the dataset " + data.Time(nt - 1).ToTString()};
   if(end < data.Time(0)) return {tindexes, "End time " + e.ToTString() + " is lesser then begin time in the dataset " + data.Time(0).ToTString()};
 
-  size_t ib = 0, ie = nt - 1;
   for(size_t i = 0; i < nt; i++)
-   if(data.Time(i) >= beg)
-   {
-    ib = i;
-    break;
-   }
-
-  for(size_t i = nt; i != 0; i--)
-   if(data.Time(i - 1) <= end)
-   {
-    ie = i - 1;
-    break;
-   }
-
-  tindexes.resize(ie - ib + 1);
-  for(size_t i = 0; i < ie - ib + 1; i++) tindexes[i] = i + ib;
+   if(data.Time(i) >= beg && data.Time(i) <= end) tindexes.push_back(i);
 
   if(tindexes.size() == 0) return {tindexes, "There are no times between " + b.ToString() + " and " + e.ToString()};
   pars.SetParameter("timeb", b.ToTString());
   pars.SetParameter("timee", e.ToTString());
  }
 
+ std::ranges::sort(tindexes, [&data = std::as_const(data)](size_t a, size_t b) { return data.Time(a) < data.Time(b); });
+
  return {tindexes, ""};
 }