diff --git a/algorithm-exercises-java/src/main/java/ae/hackerrank/warmup/TimeConversion.java b/algorithm-exercises-java/src/main/java/ae/hackerrank/warmup/TimeConversion.java
deleted file mode 100644
index e93b2e7..0000000
--- a/algorithm-exercises-java/src/main/java/ae/hackerrank/warmup/TimeConversion.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package ae.hackerrank.warmup;
-
-
-/**
- * Time Conversion.
- *
- * @link Problem definition [[docs/hackerrank/warmup/time_conversion.md]]
- */
-public class TimeConversion {
-
-  private TimeConversion() {
-  }
-
-  static java.util.logging.Logger logger = util.CustomLogger.getLogger();
-
-  /**
-   * timeConversion.
-   */
-  public static String timeConversion(String input) {
-    String meridian = input.substring(input.length() - 2);
-    meridian = meridian.toLowerCase();
-
-    String timeStr = input.substring(0, input.length() - 2);
-    String[] time = timeStr.split(":");
-
-    int hour = Integer.parseInt(time[0]);
-
-    hour = hour % 12;
-
-    if (meridian.equals("pm")) {
-      hour += 12;
-    }
-
-    time[0] = String.format("%02d", hour);
-
-    return String.join(":", time);
-  }
-}
diff --git a/algorithm-exercises-java/src/test/java/ae/hackerrank/warmup/TimeConversionTest.java b/algorithm-exercises-java/src/test/java/ae/hackerrank/warmup/TimeConversionTest.java
deleted file mode 100644
index 6dac984..0000000
--- a/algorithm-exercises-java/src/test/java/ae/hackerrank/warmup/TimeConversionTest.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package ae.hackerrank.warmup;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-import java.util.Arrays;
-import java.util.List;
-import org.junit.jupiter.api.BeforeAll;
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.TestInstance;
-import org.junit.jupiter.api.TestInstance.Lifecycle;
-
-@TestInstance(Lifecycle.PER_CLASS)
-class TimeConversionTest {
-  public class TimeConversionTestCase {
-    public String input;
-    public String expected;
-
-    public TimeConversionTestCase(String _input, String _expected) {
-      this.input = _input;
-      this.expected = _expected;
-    }
-  }
-
-  public List<TimeConversionTestCase> testCases;
-
-  @BeforeAll
-  public void setup() {
-    this.testCases = Arrays.asList(
-      new TimeConversionTestCase("12:01:00PM", "12:01:00"),
-      new TimeConversionTestCase("12:01:00AM", "00:01:00")
-    );
-  }
-
-  @Test
-  void testStaircase() {
-    for (TimeConversionTestCase testCase : this.testCases) {
-      String solutionFound = TimeConversion.timeConversion(testCase.input);
-
-      assertEquals(testCase.expected, solutionFound,
-          String.format("%s(%s) answer must be: %s",
-              "Staircase.staircase",
-              testCase.input,
-              testCase.expected));
-    }
-  }
-}
diff --git a/docs/hackerrank/warmup/time_conversion.md b/docs/hackerrank/warmup/time_conversion.md
deleted file mode 100644
index 273cd14..0000000
--- a/docs/hackerrank/warmup/time_conversion.md
+++ /dev/null
@@ -1,53 +0,0 @@
-# [Time Conversion](https://www.hackerrank.com/challenges/time-conversion)
-
-Difficulty: #easy
-Category: #warmup
-
-Given a time in
-12-[hour AM/PM format](https://en.wikipedia.org/wiki/12-hour_clock),
-convert it to military (24-hour) time.
-
-Note:
-
-- 12:00:00AM on a 12-hour clock is 00:00:00 on a 24-hour clock.
-- 12:00:00PM on a 12-hour clock is 12:00:00 on a 24-hour clock.
-
-## Example
-
-- s = '12:01:00PM' \
-  Return '12:01:00'
-- s = '12:01:00AM' \
-  Return '00:01:00'
-
-## Function Description
-
-Complete the timeConversion function in the editor below.
-It should return a new string representing the input time in 24 hour format
-timeConversion has the following parameter(s):
-
-- string s: a time in 12 hour format
-
-## Returns
-
-- string: the time in 24 hour format
-
-## Input Format
-
-A single string s that represents a time in 12-hour clock format
-(i.e.: hh_mm_ssAM or hh:mm:ssPM).
-
-## Constraints
-
-- All input times are valid
-
-## Sample Input 0
-
-```text
-07:05:45PM
-```
-
-## Sample Output 0
-
-```text
-19:05:45
-```