'Delaying a task for a very very long time

If we delay a Task using the Task.Delay method for a very long time, let's say 6 months, and if we assume that the OS does not shutdown or restart during this period of time, is there any guarantee the associated Task would wake up at the right time? Or will it be killed by the OS?

c++sharp.net-core


Solution 1:[1]

You cannot use Task.Delay for that length of time. The method takes an int number of milliseconds, meaning the maximum number you can pass in is int.MaxValue. That translates to approximately 24.86 days.

The overload that takes a TimeSpan is also restricted according to the docs:

Exception: The delay argument's TotalMilliseconds property is greater than MaxValue.

If you want a task to happen after a longer period, there are far better tools for that, such as Hangfire or even the operating system task scheduler.

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Solution 1 DavidG

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