Sometimes, we need to have an IObservable subscription run at a specific time. Imagine having to synchronize events across servers in different geographical areas and time zones. You might also need to read data from a queue while preserving the order in which the events occur. Another example would be to perform some kind of I/O task that could take some time to complete. Schedulers come in very handy in these situations.
Using schedulers in Rx
Getting ready
Additionally, you can consider reading up more on using schedulers on MSDN. Take a look at https://msdn.microsoft.com/en-us/library/hh242963(v=vs.103).aspx.
