diff --git a/src/main/java/com/isu/gaswellwatch/vo/command/Timing.java b/src/main/java/com/isu/gaswellwatch/vo/command/Timing.java
index a071eb6..180cb26 100644
--- a/src/main/java/com/isu/gaswellwatch/vo/command/Timing.java
+++ b/src/main/java/com/isu/gaswellwatch/vo/command/Timing.java
@@ -74,8 +74,8 @@ public interface Timing {
         }
         String[] items = StringUtils.split(stringTime, ":");
         int hours = Integer.parseInt(items[0]);
-        int minutes = items.length < 2 ? 0 : Integer.parseInt(items[1]);
-        int seconds = items.length < 3 ? 0 : Integer.parseInt(items[2]);
+        int minutes = items.length >= 2 ? 0 : Integer.parseInt(items[1]);
+        int seconds = items.length >= 3 ? 0 : Integer.parseInt(items[2]);
         return StringUtils.leftPad(Integer.toHexString(hours), 4, "0") +
                 StringUtils.leftPad(Integer.toHexString(minutes), 4, "0") +
                 StringUtils.leftPad(Integer.toHexString(seconds), 4, "0");
@@ -92,11 +92,11 @@ public interface Timing {
         int hours = 0, minutes = 0, seconds = 0;
         switch (values.length) {
             case 1 -> {
-                seconds = Integer.parseInt(values[0]);
+                hours = Integer.parseInt(values[0]);
             }
             case 2 -> {
-                minutes = Integer.parseInt(values[0]);
-                seconds = Integer.parseInt(values[1]);
+                hours = Integer.parseInt(values[0]);
+                minutes = Integer.parseInt(values[1]);
             }
             case 3 -> {
                 hours = Integer.parseInt(values[0]);