diff --git a/src/dateConverter/constants.ts b/src/dateConverter/constants.ts
index 6f846db..00c0167 100644
--- a/src/dateConverter/constants.ts
+++ b/src/dateConverter/constants.ts
@@ -91,23 +91,23 @@ export const NP_MONTHS_DATA: Array<[number[], number]> = [
     [[31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30], 365],
     [[31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30], 365],
     [[31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 30], 365], // 2080
-    [[31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31], 366],
-    [[30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[31, 31, 32, 31, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[31, 31, 32, 31, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[31, 32, 31, 32, 30, 31, 30, 30, 29, 30, 30, 30], 366],
-    [[30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[31, 31, 32, 31, 31, 31, 30, 30, 29, 30, 30, 30], 366],
-    [[30, 31, 32, 32, 30, 31, 30, 30, 29, 30, 30, 30], 365],
-    [[30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[31, 31, 32, 31, 31, 31, 30, 30, 29, 30, 30, 30], 366],
-    [[30, 31, 32, 32, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[31, 31, 32, 31, 31, 30, 30, 30, 29, 30, 30, 30], 365],
-    [[31, 31, 32, 31, 31, 31, 30, 29, 30, 30, 30, 30], 366],
-    [[30, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30], 364],
-    [[31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30], 366],
-    [[31, 31, 32, 31, 31, 31, 29, 30, 29, 30, 29, 31], 365],
-    [[31, 31, 32, 31, 31, 31, 30, 29, 29, 30, 30, 30], 365], // 2099 BS - 2042/2043 AD
+    [[31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31], 366], // 2081
+    [[31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30], 365], // 2082
+    [[31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31], 366],
+    [[30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31], 365],
+    [[31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31], 366],
+    [[30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31], 365],
+    [[31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31], 366],
+    [[31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 29, 31], 365],
+    [[31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 31], 366],
+    [[31, 31, 31, 32, 31, 31, 29, 30, 30, 29, 30, 30], 365],
+    [[31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30], 365],
+    [[31, 31, 32, 32, 31, 30, 30, 29, 30, 29, 30, 30], 365], // 2099 BS - 2042/2043 AD
 ]