01. Right Now
A live snapshot of the current moment in both systems — so the conversion clicks before you read another word.
02. Reading the Interface
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C
The Clock
Outer Ring: Legacy time context (12, 18, 0, 6).
Inner Ring: Metric Hours (0–10).
Solar Markers: Approximate sunrise/sunset, calibrated for ≈ 40° latitude. Near the equator the drift collapses to almost zero; near the polar circles it becomes extreme. Treat as illustrative, not predictive.
Work / Rest Arcs: Faint shaded bands marking suggested productive hours (≈ 33% – 71% of the metric day, roughly 8 am – 5 pm legacy) and rest hours (≈ 92% – 25%, roughly 10 pm – 6 am). These are cultural defaults, not part of the system itself.
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O
Orbit View
Heliocentric (top-down) visualization. Color-coded arcs show seasons. Zodiac glyphs are placed in their true sky direction — opposite Earth's orbital position for the month, since that's where the Sun appears against the constellations from Earth's view. A gold "SUN IN [SIGN]" ray points to the current constellation. Includes approximate lunar phase (single-epoch + mean synodic period) and an interactive hover for both orbit dates and zodiac signs.
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5d
The Metric Week
Each month has exactly 6 weeks of 5 days. The weekdays are named from Latin ordinals:
Prim (1st), Seco (2nd), Tert (3rd), Quad (4th), Quin (5th).
QUAD and QUIN serve as the metric weekend.
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SIM
Simulator Mode
Flip the LIVE / SIM toggle in the header to freeze the clock and scrub through any moment in the metric year. Two scrubbers appear: Time of Day (under the clock) and Day of Year (under the orbit). You can also click any day on the calendar to jump to it.
03. Unit Conversion
| Metric Unit |
Value |
Standard Equiv. |
| 1 Day | 10 Hours | 24 Hours |
| 1 Hour (Deciday) | 100 Minutes | 2.4 Hours (144 min) |
| 1 Minute (Milliday) | 100 Seconds | 1.44 Minutes (86.4s) |
| 1 Second | Base Unit | 0.864 Seconds |
04. Cosmic Alignment
The calendar is physically anchored to the March (vernal) equinox — the moment the Sun crosses the celestial equator heading north. This is why the calendar exists at all; it's not arbitrary.
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Equinox Anchor (Month 0 = Aries)
The year begins at the March equinox (~Mar 20), the First Point of Aries — the origin of the sky's coordinate system. So Month 0 maps to Aries and the zodiac runs in its canonical order (Aries → Pisces). The HE year number ticks over at this moment — not on January 1. Month 0 is mid-spring (North) or mid-autumn (South).
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Solar Placement
The 12 Metric Months correspond to the 12 zodiacal sectors (30° each) of Earth's orbit. The three interior cardinal events fall on Day 31 of months 3, 6, and 9 (June Solstice, September Equinox, December Solstice); the March Equinox is the year's boundary. Each month also keeps a familiar Gregorian name — Month 0 = "March" — for easy reference. In the orbit view the zodiac glyph for each month is drawn on the FAR side of the Sun from Earth — the actual direction the Sun appears against the stars from Earth's view at that time of year (heliocentric convention).
05. Philosophy
Why two number-systems in one app? Because time-of-day and time-of-year are different problems, and the right base for each is different.
Decimal Time (Day)
The day is a fixed constant. We divide it by 10, then 100, then 100. No more arbitrary 12s and 60s — and percentages of the day become trivial to read.
Dodecimal Year (Calendar)
The orbit is geometric. 12 months map perfectly to 4 seasons × 3 months and to the 12 zodiacal sectors (30° each). Keeping 12 months is not a concession to tradition — it is the most astronomically natural division of the solar year.
06. Year Mechanics
How the year counts up, and how 365.24 real days fit into a 360-day decimal grid.
Human Era (HE) Year Count
- Epoch: 10,000 BCE (approximate start of the Neolithic Revolution — when humans started farming and the modern world began).
- Conversion: HE = CE + 10,000. So 2026 CE = 12026 HE.
- Why: Eliminates negative years for prehistoric dates. The pyramids were built around 2500 BCE = 7500 HE — same axis as today, no sign-flips.
Intercalary Days
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The Gap:
12 months × 30 days = 360. The solar year has 5–6 extra days that don't fit the decimal grid.
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Cardinals:
Three of the extra days are the interior solstices/equinoxes — Day 31 of months 3, 6, 9. They're spread naturally across the year, one per season.
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Bridge Day:
The remaining residual day every year is Day 32 of Month 3 ("Bridge Day"), placed in the long northern spring rather than clustered at year-end.
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Leap Day:
In leap years one further day — Day 32 of Month 6 ("Leap Day") — keeps the calendar locked to the equinox. It's calendrical residue, not an astronomical event, so it's named plainly.