diff --git a/package.json b/package.json
index 167742b..3302d20 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
     "@pushrocks/lik": "^4.0.17",
     "@pushrocks/smartdelay": "^2.0.10",
     "@pushrocks/smartpromise": "^3.0.2",
+    "croner": "^1.1.23",
     "dayjs": "^1.8.35",
     "is-nan": "^1.3.0"
   },
diff --git a/ts/smarttime.classes.cronjob.ts b/ts/smarttime.classes.cronjob.ts
index 8657a35..d6c3091 100644
--- a/ts/smarttime.classes.cronjob.ts
+++ b/ts/smarttime.classes.cronjob.ts
@@ -6,7 +6,7 @@ import { CronParser } from './smarttime.classes.cronparser';
 export type TJobFunction = (() => void) | (() => Promise<any>);
 
 export class CronJob {
-  public cronParser: CronParser;
+  public cronParser: CronParser | typeof plugins.croner;
   public status: 'started' | 'stopped' | 'initial' = 'initial';
   public cronExpression: string;
   public jobFunction: TJobFunction;
@@ -15,7 +15,7 @@ export class CronJob {
   constructor(cronManager: CronManager, cronExpressionArg: string, jobFunction: TJobFunction) {
     this.cronExpression = cronExpressionArg;
     this.jobFunction = jobFunction;
-    this.cronParser = new CronParser(cronExpressionArg);
+    this.cronParser = plugins.croner(cronExpressionArg);
   }
 
   /**
@@ -43,7 +43,7 @@ export class CronJob {
    * gets the time to next execution
    */
   public getTimeToNextExecution() {
-    return this.cronParser.getMsToNextTimeMatch();
+    return this.cronParser.msToNext();
   }
 
   public start() {
diff --git a/ts/smarttime.classes.cronparser.ts b/ts/smarttime.classes.cronparser.ts
index 03333cc..a04131a 100644
--- a/ts/smarttime.classes.cronparser.ts
+++ b/ts/smarttime.classes.cronparser.ts
@@ -33,7 +33,7 @@ export class CronParser {
     }
   }
 
-  public getMsToNextTimeMatch() {
+  public msToNext() {
     const cronArray = this.cronArray;
     const secondExpression = cronArray[0];
     const minuteExpression = cronArray[1];
diff --git a/ts/smarttime.plugins.ts b/ts/smarttime.plugins.ts
index aead7db..e67ab30 100644
--- a/ts/smarttime.plugins.ts
+++ b/ts/smarttime.plugins.ts
@@ -6,6 +6,7 @@ import * as smartpromise from '@pushrocks/smartpromise';
 export { lik, smartdelay, smartpromise };
 
 // third parties
+import croner from 'croner';
 import dayjs from 'dayjs';
 
-export { dayjs };
+export { croner, dayjs };