In calendar day view, suppose if I schedule some tasks in the next few hours. I will start working on my 1st task (suppose 9AM - 10AM) and just 5mins before 10AM I need to be notified about the remaining time and also inform me about my next task which was previously scheduled at 10AM.

Right now Im working on my 1st task and forgetting about my next task, so a reminder/notification will definitely help me in following my schedule.

clickup can also show remaining time for the current task in the top mac menu.