const check=()=>{
   const cacheIntervalInMin = 1;
   const cacheExpiryTime = new Date();
   cacheExpiryTime.setMinutes(cacheExpiryTime.getMinutes() + cacheIntervalInMin);
 

   const lastRequest = new Date().toISOString();
   let a= new Date(lastRequest);
   if(a>cacheExpiryTime){ 
       console.log(Expired')
   }
   else console.log('Not expired');
}
check();
  

I want to set the expiry time to 30 mins but everytime I call this function it is always false . a never becomes greater than expiry time. How to solve this? How to achieve this?