date to offsetdatetime

java-dates-2/src/main/java/com/baeldung/date/conversion/ConvertToOffsetDateTime.java

@@ -0,0 +1,17 @@
+package com.baeldung.date.conversion;
+
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.util.Date;
+
+public class ConvertToOffsetDateTime {
+    
+    public static OffsetDateTime convert (Date date) {
+        return date.toInstant().atOffset(ZoneOffset.UTC);
+    }
+    
+    public static OffsetDateTime convert (Date date, int hour, int minute) {
+        return date.toInstant().atOffset(ZoneOffset.ofHoursMinutes(hour, minute));
+    }
+
+}

java-dates-2/src/test/java/com/baeldung/date/conversion/ConvertToOffsetDateTimeUnitTest.java

@@ -0,0 +1,29 @@
+package com.baeldung.date.conversion;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.time.OffsetDateTime;
+import java.util.Date;
+
+import org.junit.Test;
+
+public class ConvertToOffsetDateTimeUnitTest {
+
+    @Test
+    public void whenDateIsNotNull_thenConvertToOffsetDateTime() {
+        Date date = new Date();
+        assertTrue(ConvertToOffsetDateTime.convert(date) instanceof OffsetDateTime);
+    }
+    
+    @Test
+    public void givenDate_whenHasOffset_thenConvertWithOffset() {
+        Date date = new Date();
+        date.setHours(6);
+        date.setMinutes(30);
+        OffsetDateTime odt = ConvertToOffsetDateTime.convert(date, 3, 30);
+        assertEquals(10, odt.getHour());
+        assertEquals(0, odt.getMinute());
+    }
+    
+}