one summer afternoon in 1999
sitting alone at the table on Woodwind Farm
my mind set upon the problem of time
especially the dissonance between
humanity's various calendars
and natural/physical process

artificial time keeping is certainly useful
but I wanted to simply see the current state
of these basic periodic processes

these dials show current state/position
within the context of the whole period
(without confusion of numbers/symbols)


the innermost ring is the day (earth rotation)
oriented nadir (solar midnight) at the bottom
the three grey bands between day and night
are twilight (civil, nautical, astronomical)
mark steps: five minutes, one hour

moon visibility (rise/set) is shown by
the thin line around the day dial

day-related data is dependent on location
which is automatically set by the browser
but you can change it manually
(edit the URL?query=string and reload)


the next ring is the lunar phase (synodic period)
oriented new moon at bottom
mark steps: one hour, one day


the outer ring is the earth orbit
oriented winter solstice at bottom
mark steps: day, week, lunar-period


each mark (indicating current position) is a stepped swath
whose width extends from present into the past
to provide a moving measure of meaningful width
in contrast to a graduated dial face


as this method of display is naturally useful
for showing many kinds of cyclical processes
I am also developing a generalised system
which is prematurely named cyclodial