diff --git a/src/main/java/ua/net/uid/utils/time/DailyEquation.java b/src/main/java/ua/net/uid/utils/time/DailyEquation.java
index 23f8154..5bbcd95 100644
--- a/src/main/java/ua/net/uid/utils/time/DailyEquation.java
+++ b/src/main/java/ua/net/uid/utils/time/DailyEquation.java
@@ -84,7 +84,8 @@
         // UT = T - lngHour
         return localMeanTime - baseLongitudeHour;
     }
-    
+
+    private static final int DAYMSEC = 24 * 60 * 60 * 1000;
     protected static long convertDate(Calendar calendar, double utcTime)  {
         // localT = UT + localOffset
         int time = (int)(utcTime * 3600000) + calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);
@@ -99,5 +100,5 @@
         return calendar.getTimeInMillis();
     }
     
-    private static final int DAYMSEC = 24 * 60 * 60 * 1000;
+    private DailyEquation() {}
 }
diff --git a/src/main/java/ua/net/uid/utils/time/DailyEvents.java b/src/main/java/ua/net/uid/utils/time/DailyEvents.java
index a88e146..e75ba4e 100644
--- a/src/main/java/ua/net/uid/utils/time/DailyEvents.java
+++ b/src/main/java/ua/net/uid/utils/time/DailyEvents.java
@@ -1,5 +1,7 @@
 package ua.net.uid.utils.time;
 
+import java.util.Objects;
+
 public class DailyEvents {
     private final Long sunrise;
     private final Long sunset;
@@ -22,4 +24,21 @@
     public DailyEventType getType() {
         return type;
     }
+
+    public boolean equals(DailyEvents other) {
+        return other == this || (other != null
+            && Objects.equals(sunrise, other.sunrise)
+            && Objects.equals(sunset, other.sunset)
+            && Objects.equals(type, other.type));
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(sunrise, sunset, type) ^ getClass().hashCode();
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        return other instanceof DailyEvents && equals((DailyEvents) other);
+    }
 }