The timestamp mechanism is used for a wide variety of synchronization purposes, such as assigning a sequence order for a multi-event transaction so that if a failure occurs the transaction can be voided. Another way that a timestamp is used is to record time in relation to a particular starting point. In IP telephony , for example, the Real-time Transport Protocol ( RTP ) assigns sequential timestamps to voice packet s so that they can be buffer ed by the receiver, reassembled, and delivered without error.
Most cases of shingles last 3 to 5 weeks. 1  The first sign is often burning or tingling pain; sometimes, it includes numbness or itching on one side of the body.  Somewhere between 1 and 5 days after the tingling or burning feeling on the skin, a red rash will appear.
For reasons that experts don't really understand, the pain of shingles lingers for some. If the pain lasts for at least 3 months after the shingles rash has healed, a person is diagnosed with PHN. In some people, the pain will subside. In others, it won't. We don't have any idea why the pain goes away in some people and not others, says Dworkin.