How to prompt notification on user time set in flutter

I am trying to work around it where the user can set a time and an alarm or notification will prompt when it is exactly the time set. Am open to any idea to achieve this with flutter or FCM.

https://stackoverflow.com/questions/66054889/how-to-prompt-notification-on-user-time-set-in-flutter February 05, 2021 at 06:37AM