[FEATURE]: Abstraction of time so that time can be manipulated in tests

## Describe the Feature Request
We have a use case where we want to manipulate time during testing. Currently, conductor uses native methods (`System.currentTimeMillis`) to get the time at different places. This makes testing hard incase you want to manipulate time.
We want an ability in conductor to have a abstracted service that manages the time, so that we can use that service to modify the time as per the need during testing.

## Describe Preferred Solution
A service having static methods to return current time.

## Describe Alternatives