In this talk, Peter explains the meaning of planetary hours, how they are used and how to calculate them quickly without a computer. Planetary hours go to the heart of astrology in our understanding of the unique quality of time. The most fundamental assumption of astrology, so rarely stated, is that the quality of time varies from moment to moment. While the use of clocks in modern society might lead us to assume that time is a stream of uniform moments of equal quality, ancient astrology points to a different conclusion.
Peter also explains some applications of the planetary hours in horary and natal astrology.