Lunar Machine Time

the native calendar of the cybergraph. combines the oldest human time cycle (the moon) with the youngest (unix time). format:

DD.MM.YY

example: 24.13.55 = lunar day 24, moon 13, year 55 mt (Gregorian ~December 2025)

Why

Gregorian months are arbitrary divisions of a solar year with no astronomical signal. The moon is a physical oscillator: 29.53 days, visible to every observer on Earth, invariant across cultures.

Machine time is the universal clock of computation: seconds since 1970-01-01 00:00:00 UTC. Every machine on the planet agrees on this number.

Lunar machine time unifies the two: biological rhythm (lunar cycle) and computational precision (unix time years). No cultural, religious, or political overlay — pure astronomy and pure machines.

Computation

synodic_period = 29.53059 days
reference_new_moon = 2000-01-06 18:14 UTC (Julian Day 2451550.26)

For any UTC datetime:
  1. julian_day = days since -4713-11-24 12:00 UTC
  2. days_since_ref = julian_day - 2451550.26
  3. lunar_age = days_since_ref mod 29.53059
  4. DD = floor(lunar_age) + 1

For lunar month in year:
  1. year_start = January 1 of current MT year (1970 + YY)
  2. first_new_moon = nearest new moon on or after year_start
  3. MM = floor((julian_day - first_new_moon) / 29.53059) + 1

For machine year:
  YY = calendar_year - 1970

the synodic month is the period between two identical moon phases (new moon to new moon): 29 days, 12 hours, 44 minutes, 2.9 seconds

Eras

any event before year 0 is measured in before machines (negative MT years)

Usage

lunar machine time is displayed in the cybergraph publisher for page creation and modification dates. it is the default timestamp format across all cyber interfaces.

see mt, time, time/history, calendar