Yes, reciprocal time (Hz) is really useful for repeating phenomena... musical instruments (including the voice) are an excellent example. Once you have a note (

Yes, reciprocal time (Hz) is really useful for repeating phenomena... musical instruments (including the voice) are an excellent example. Once you have a note (e.g. A = 440Hz) you can then divide it down to get seconds, days, years. If you want an example of humans able to determine time incredibly accurately over a lifetime, just look a "perfect pitch" musicians who can tune their instruments to match other musicians to a percent from across the world. Although most people would have difficulty matching that accuracy, they wouldn't have difficulty telling an alto from a soprano at any point in their life after they have first heard the difference. Our civilization grew up with music, dance and all sorts of "absolute" human temporal measures.