diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index c00da3c6..a54e4067 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -75,6 +75,7 @@ slug: /changelog
 
 ## master
 
+* (2024.07.14) 优化`Axis`的`Time`时间轴的`splitNumber`为0时的表现
 * (2024.07.14) 优化`Axis`的`Time`时间轴的滚动表现
 * (2024.07.12) 优化`Label`显示体验
 * (2024.07.06) 修复`Chart`在动态创建时背景没有自适应的问题 (#323)
diff --git a/Runtime/Utilities/DateTimeUtil.cs b/Runtime/Utilities/DateTimeUtil.cs
index 3f090be2..d785daac 100644
--- a/Runtime/Utilities/DateTimeUtil.cs
+++ b/Runtime/Utilities/DateTimeUtil.cs
@@ -107,13 +107,12 @@ namespace XCharts.Runtime
             list.Clear();
             var range = maxTimestamp - minTimestamp;
             if (range <= 0) return 0;
-            if (splitNumber <= 0) splitNumber = 1;
             var dtMin = DateTimeUtil.GetDateTime(minTimestamp);
             var dtMax = DateTimeUtil.GetDateTime(maxTimestamp);
             int tick = 0;
             if (range >= ONE_YEAR * MIN_TIME_SPLIT_NUMBER)
             {
-                var num = Math.Max(range / (splitNumber * ONE_YEAR), 1);
+                var num = splitNumber <= 0 ? 1 : Math.Max(range / (splitNumber * ONE_YEAR), 1);
                 var dtStart = (firstValue == 0 || secondValue == 0) ? new DateTime(dtMin.Year + 1, 1, 1) :
                     (minTimestamp > firstValue ? DateTimeUtil.GetDateTime(secondValue) : DateTimeUtil.GetDateTime(firstValue));
                 tick = num * 365 * 24 * 3600;
@@ -125,7 +124,7 @@ namespace XCharts.Runtime
             }
             else if (range >= ONE_MONTH * MIN_TIME_SPLIT_NUMBER)
             {
-                var num = Math.Max(range / (splitNumber * ONE_MONTH), 1);
+                var num = splitNumber <= 0 ? 1 : Math.Max(range / (splitNumber * ONE_MONTH), 1);
                 var dtStart = (firstValue == 0 || secondValue == 0) ? (new DateTime(dtMin.Year, dtMin.Month, 1).AddMonths(1)) :
                     (minTimestamp > firstValue ? DateTimeUtil.GetDateTime(secondValue) : DateTimeUtil.GetDateTime(firstValue));
                 tick = num * 30 * 24 * 3600;