RateLimiter will possibly behave unexpectedly during a DST time change

[PeterJarrettUK]

Hi,

Looking in TimeSystem.cs in ITime.GetNow at line 22 it's using DateTime.Now, but if the code is running in an environment where the clocks change from DST to non-DST then DateTime.Now will suddenly return 1 hour before - and vice versa if the clocks go forward.

So I think (and please do just say if I'm misreading the code!) that if a longer running delay is active at the point when the clocks change, that the limiter might return early, OR very very late.

Perhaps a straight switch to DateTime.UtcNow would resolve this?