From d64acc9806e0afd65c251d1b98fa9d4f17250f1e Mon Sep 17 00:00:00 2001
From: InsanusMokrassar <ovsyannikov.alexey95@gmail.com>
Date: Mon, 18 Sep 2023 14:15:20 +0600
Subject: [PATCH] potential fix of #65

---
 CHANGELOG.md                                             | 2 ++
 src/commonMain/kotlin/internal/NearDateTimeCalculator.kt | 8 +++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c19e4e..160e6cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## 2.2.1
 
+* Potential fix of [#65](https://github.com/InsanusMokrassar/krontab/issues/65)
+
 ## 2.2.0
 
 * Versions
diff --git a/src/commonMain/kotlin/internal/NearDateTimeCalculator.kt b/src/commonMain/kotlin/internal/NearDateTimeCalculator.kt
index 9853bf5..bcc698d 100644
--- a/src/commonMain/kotlin/internal/NearDateTimeCalculator.kt
+++ b/src/commonMain/kotlin/internal/NearDateTimeCalculator.kt
@@ -108,13 +108,19 @@ internal fun NearDateTimeCalculatorDays(
         } else {
             dateTime
         })
-        dateTime.copy(
+        val newDateTime = dateTime.copy(
             dayOfMonth = min(dateTime.month.days(dateTime.year), newOne.toInt() + 1), // index1
             hour = 0,
             minute = 0,
             second = 0,
             milliseconds = 0
         )
+        // If day of month has not been changed, use old dateTime due to no changes required
+        if (newDateTime.dayOfMonth == dateTime.dayOfMonth) {
+            dateTime
+        } else {
+            newDateTime
+        }
     }
 )