diff --git a/dist/smarttime.classes.timestamp.d.ts b/dist/smarttime.classes.timestamp.d.ts
index c62fd84..53fac22 100644
--- a/dist/smarttime.classes.timestamp.d.ts
+++ b/dist/smarttime.classes.timestamp.d.ts
@@ -8,11 +8,28 @@ export declare class TimeStamp {
      */
     date: Date;
     /**
-     * The time as linux time
+     * The time as linux time (milliseconds, not seconds though)
      * good for comparison
      */
-    linuxtime: number;
-    constructor(creatorArg?: number | TimeStamp);
+    milliSeconds: number;
+    /**
+     * The standard epoch time in seconds
+     */
+    epochtime: number;
+    /**
+     * if derived from another TimeStamp points out the change in milliseconds
+     */
+    change: number;
+    constructor(creatorArg?: number);
+    /**
+     * returns new TimeStamp from milliseconds
+     */
+    static fromMilliSeconds(milliSecondsArg: any): TimeStamp;
+    /**
+     * returns new TimeStamp for now with change set
+     * @param timeStampArg
+     */
+    static fromTimeStamp(timeStampArg: TimeStamp): TimeStamp;
     /**
      * Is the current instance older than the argument
      * @param TimeStampArg
diff --git a/dist/smarttime.classes.timestamp.js b/dist/smarttime.classes.timestamp.js
index 4038364..c9e1359 100644
--- a/dist/smarttime.classes.timestamp.js
+++ b/dist/smarttime.classes.timestamp.js
@@ -6,17 +6,40 @@ Object.defineProperty(exports, "__esModule", { value: true });
  */
 class TimeStamp {
     constructor(creatorArg) {
+        /**
+         * if derived from another TimeStamp points out the change in milliseconds
+         */
+        this.change = null;
         if (!creatorArg) {
             this.date = new Date();
-            this.linuxtime = this.date.getTime();
         }
+        else if (typeof creatorArg === 'number') {
+            this.date = new Date(creatorArg);
+        }
+        this.milliSeconds = this.date.getTime();
+        this.epochtime = Math.floor(this.milliSeconds / 1000);
+    }
+    /**
+     * returns new TimeStamp from milliseconds
+     */
+    static fromMilliSeconds(milliSecondsArg) {
+        return new TimeStamp(milliSecondsArg);
+    }
+    /**
+     * returns new TimeStamp for now with change set
+     * @param timeStampArg
+     */
+    static fromTimeStamp(timeStampArg) {
+        let localTimeStamp = new TimeStamp();
+        localTimeStamp.change = localTimeStamp.milliSeconds - timeStampArg.milliSeconds;
+        return localTimeStamp;
     }
     /**
      * Is the current instance older than the argument
      * @param TimeStampArg
      */
     isOlderThan(TimeStampArg) {
-        if (this.linuxtime < TimeStampArg.linuxtime) {
+        if (this.milliSeconds < TimeStampArg.milliSeconds) {
             return true;
         }
         else {
@@ -24,7 +47,7 @@ class TimeStamp {
         }
     }
     isYoungerThan(TimeStampArg) {
-        if (this.linuxtime > TimeStampArg.linuxtime) {
+        if (this.milliSeconds > TimeStampArg.milliSeconds) {
             return true;
         }
         else {
@@ -33,4 +56,4 @@ class TimeStamp {
     }
 }
 exports.TimeStamp = TimeStamp;
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\ No newline at end of file
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diff --git a/ts/smarttime.classes.timestamp.ts b/ts/smarttime.classes.timestamp.ts
index fc1e1dd..810b037 100644
--- a/ts/smarttime.classes.timestamp.ts
+++ b/ts/smarttime.classes.timestamp.ts
@@ -11,15 +11,46 @@ export class TimeStamp {
   date: Date
 
   /**
-   * The time as linux time
+   * The time as linux time (milliseconds, not seconds though)
    * good for comparison
    */
-  linuxtime: number
-  constructor (creatorArg?: number | TimeStamp) {
+  milliSeconds: number
+
+  /**
+   * The standard epoch time in seconds
+   */
+  epochtime: number
+
+  /**
+   * if derived from another TimeStamp points out the change in milliseconds
+   */
+  change: number = null
+
+  constructor (creatorArg?: number) {
     if (!creatorArg) {
       this.date = new Date()
-      this.linuxtime = this.date.getTime()
+    } else if (typeof creatorArg === 'number') {
+      this.date = new Date(creatorArg)
     }
+    this.milliSeconds = this.date.getTime()
+    this.epochtime = Math.floor(this.milliSeconds / 1000)
+  }
+
+  /**
+   * returns new TimeStamp from milliseconds
+   */
+  static fromMilliSeconds (milliSecondsArg) {
+    return new TimeStamp(milliSecondsArg)
+  }
+
+  /**
+   * returns new TimeStamp for now with change set
+   * @param timeStampArg
+   */
+  static fromTimeStamp (timeStampArg: TimeStamp) {
+    let localTimeStamp = new TimeStamp()
+    localTimeStamp.change = localTimeStamp.milliSeconds - timeStampArg.milliSeconds
+    return localTimeStamp
   }
 
   /**
@@ -27,7 +58,7 @@ export class TimeStamp {
    * @param TimeStampArg
    */
   isOlderThan (TimeStampArg: TimeStamp) {
-    if (this.linuxtime < TimeStampArg.linuxtime) {
+    if (this.milliSeconds < TimeStampArg.milliSeconds) {
       return true
     } else {
       return false
@@ -35,7 +66,7 @@ export class TimeStamp {
   }
 
   isYoungerThan (TimeStampArg: TimeStamp) {
-    if (this.linuxtime > TimeStampArg.linuxtime) {
+    if (this.milliSeconds > TimeStampArg.milliSeconds) {
       return true
     } else {
       return false