title: How to create a self Time triggered Function?
body: <p>Looking for some self triggering function which starts on a time given. </p>
  
  <p>eg. A user has a conference to start at 25/04/2019 05:30 
  Here the user should get a notification at 25/04/2019 05:25 | 05:29 That the conference is about to start. </p>
  
  <p>Have created a azure function (Time triggred) which triggers every minute and checks if current time is the Conference Time  - 4 minutes, Then send a notification regarding conference to be started. </p>
  
  <p>In future will have multiple users and so I do not want the function to run every minute, Is there a way in which at 05:25 or at the conference time  the function will execute itself. 
  So there can be 100 users and they will have different. Just looking for options about how to implement in a better way.</p>
  
  <p>.net core site, 
  hosted on azure,
  Have azure functions running every minute to check the remainder </p>