diff --git a/dist/smarttime.classes.timestamp.d.ts b/dist/smarttime.classes.timestamp.d.ts
index 53fac22..54030b7 100644
--- a/dist/smarttime.classes.timestamp.d.ts
+++ b/dist/smarttime.classes.timestamp.d.ts
@@ -34,6 +34,6 @@ export declare class TimeStamp {
      * Is the current instance older than the argument
      * @param TimeStampArg
      */
-    isOlderThan(TimeStampArg: TimeStamp): boolean;
-    isYoungerThan(TimeStampArg: TimeStamp): boolean;
+    isOlderThan(TimeStampArg: TimeStamp, compareTimeArg?: number): boolean;
+    isYoungerThan(TimeStampArg: TimeStamp, compareTimeArg?: number): boolean;
 }
diff --git a/dist/smarttime.classes.timestamp.js b/dist/smarttime.classes.timestamp.js
index c9e1359..d6b4719 100644
--- a/dist/smarttime.classes.timestamp.js
+++ b/dist/smarttime.classes.timestamp.js
@@ -38,16 +38,20 @@ class TimeStamp {
      * Is the current instance older than the argument
      * @param TimeStampArg
      */
-    isOlderThan(TimeStampArg) {
-        if (this.milliSeconds < TimeStampArg.milliSeconds) {
+    isOlderThan(TimeStampArg, compareTimeArg) {
+        if (this.milliSeconds < TimeStampArg.milliSeconds &&
+            (!compareTimeArg ||
+                (compareTimeArg && ((TimeStampArg.milliSeconds - this.milliSeconds) > compareTimeArg)))) {
             return true;
         }
         else {
             return false;
         }
     }
-    isYoungerThan(TimeStampArg) {
-        if (this.milliSeconds > TimeStampArg.milliSeconds) {
+    isYoungerThan(TimeStampArg, compareTimeArg) {
+        if (this.milliSeconds > TimeStampArg.milliSeconds &&
+            (!compareTimeArg ||
+                (compareTimeArg && ((this.milliSeconds - TimeStampArg.milliSeconds) > compareTimeArg)))) {
             return true;
         }
         else {
@@ -56,4 +60,4 @@ class TimeStamp {
     }
 }
 exports.TimeStamp = TimeStamp;
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\ No newline at end of file
+//# sourceMappingURL=data:application/json;base64,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
\ No newline at end of file
diff --git a/ts/smarttime.classes.timestamp.ts b/ts/smarttime.classes.timestamp.ts
index 810b037..7557f5d 100644
--- a/ts/smarttime.classes.timestamp.ts
+++ b/ts/smarttime.classes.timestamp.ts
@@ -57,16 +57,32 @@ export class TimeStamp {
    * Is the current instance older than the argument
    * @param TimeStampArg
    */
-  isOlderThan (TimeStampArg: TimeStamp) {
-    if (this.milliSeconds < TimeStampArg.milliSeconds) {
+  isOlderThan (TimeStampArg: TimeStamp, compareTimeArg?: number) {
+    if (
+      this.milliSeconds < TimeStampArg.milliSeconds &&
+      (
+        !compareTimeArg ||
+        (
+          compareTimeArg && ((TimeStampArg.milliSeconds - this.milliSeconds) > compareTimeArg)
+        )
+      )
+    ) {
       return true
     } else {
       return false
     }
   }
 
-  isYoungerThan (TimeStampArg: TimeStamp) {
-    if (this.milliSeconds > TimeStampArg.milliSeconds) {
+  isYoungerThan (TimeStampArg: TimeStamp, compareTimeArg?: number) {
+    if (
+      this.milliSeconds > TimeStampArg.milliSeconds &&
+      (
+        !compareTimeArg ||
+        (
+          compareTimeArg && ((this.milliSeconds - TimeStampArg.milliSeconds) > compareTimeArg)
+        )
+      )
+    ) {
       return true
     } else {
       return false