**The Geocentric Wholeness of Geo Mode.**

When you’re ready to explore Earth-centered space & time in 3 dimensions, tap the [Geo] button. Drag the Planetary Calendar-Clock (Earth at the center of the 3-dimensional Celestial Ring) to **view it from any angle**. Pinch the screen to zoom in, reverse pinch to zoom out. Spin (drag) the Calendar-Clock all the way around to check out the southern hemisphere. **MONAD is a virtual orrery or dynamic model of the solar system that illustrates and predicts the relative positions and motions of the Sun, Moon planets and stars**, at any time and date. MONAD provides you with the civil (digital) time and date usefully integrated with planetary time and date, framed by the actual astronomical and celestial events depicted on the celestial sphere.

**Proper Perspective Changes Everything**. MONAD displays the Earth’s circle of illumination from the proper orientation; **the Axial Perspective**, with **the Sun “fixed at 12” at the top of the dial**. You can see clearly how the Earth’s circle of illumination changes in relation to the Earth’s spin axis over the course of a seasonal year, as the Sun seemingly slides back and forth, north and south on the Sun’s meridian or “Date Indicator,” and how the declination of the Sun impacts the time of Sun rise and Sun set and the proportion of night and day (displayed graphically and accurately on **the Twilight Dial**) for any location on the Earth and time of year.

**Heliocentric Programming Drives all the Activity of MONAD.**

**All of the programming of MONAD is based on a heliocentric (Sun-centered) model of the solar system, **utilizing the Astronomical Algorithms of Jean Meeus to drive all the planetary activity**.** As the Earth orbits the Sun, it carries the celestial sphere (and the Earth-centered celestial coordinate system projected on the celestial sphere) with it, always **maintaining the same tilt angle of 66.5º of the Earth’s spin axis relative to the invariable plane of the solar system**. Like a gyroscope, the axis of Earth always maintains the same orientation in galactic space, even as the Earth orbits the Sun, due to the massive angular momentum of the spinning Earth.

The Sun-centered **representative planetary dial** (located in the invariable plane of the solar system) usefully compresses the size of the solar system (specifically the orbital pathways of the outer 5 planets beyond Mars) down to a more manageable size without compromising too much useful information about the location of the planets.

**There is a lot more to time than just numbers on a dial and a couple of rotating hands**. MONAD, the Planetary Calendar-Clock, tells both **analog & digital**, time & date, at a glance. But it helps to know what you’re looking at. Following are some of the basic features of MONAD the Planetary Calendar-Clock.

**The Time Zone Spanning Hour Hand.**

A time zone spanning hour hand (15º wide at the base) marks your location on the planet. The green sphere (head of a pin) at the base of the hour hand marks your exact longitude and latitude. **The hour hand indicates your local time**, pointing at one number after another on the 24 hour number dial as the Earth spins once a day relative to the Sun. In Astronomy Mode, the 24 hour number dial always maintains a fixed orientation with **the Sun and the solar meridian permanently “fixed at 12,”** **at the top of the dial**. (The Sun is fixed at 13 during Daylight Savings.) Check out Video #10 to find out more about the Hour Hand.

**Reading the Calendar Band at a Glance.**

The Sun seemingly moves back and forth (north and south) on a solar meridian or **Date Indicator which is fixed at 12**, and the arrow head at the end of the Date Indicator points at the civil (digital) date marked along the calendar band. The Calendar Band always shows exactly 365.24219 day blocks at any one time, which is the average number of days in a seasonal year.

Note that at midnight the Date Indicator points precisely at the line separating one day block from the next. **Every 5th day of every month is marked with a dot**; one dot for the 5th day, two dots for the 10th day of the month, etc. The Saturday and Sunday (**weekend**) day blocks are gray, creating a **repeating 5:2 pattern**, making it **easy to tell the time and date at a glance**. The illustration shows a date of Sunday, September 16. Check out Video #12 to find out more about the Calendar Band.

**The Importance of the Axial Perspective.**

You’re used to thinking of the Earth as a spinning top, with the north axis “up” and the south axis “down.” MONAD encourages you to **look at the Earth from an unusual orientation**, along the spin axis. Unless you are looking from the side, you see either the north or south hemisphere of Earth, out to the equator. **In the north hemisphere, the hour hand moves in a counter clockwise fashion**, and the numbers on the 24 hour number dial also ascend in a counter clockwise direction. It’s opposite to the direction of a “normal” 1 – 12 clock face. If you really can’t stand the hour hand moving counter clockwise, you can always move to Australia, where the hour hand moves in a clockwise direction. Check out Video #6 to find out more about the Axial Perspective.

**A Better Way To Tell The Time & Date.**

Although based on a heliocentric (Sun-centered) model, MONAD (in Geo Mode) shows the Earth-centered configuration of the solar system, accurate for any date; past, present or future. The phase of the Moon, the location of the Sun along the ecliptic and the location of the planets are all accurately placed relative to the celestial coordinate system of declination and right ascension. **Every moment in time the MONAD Calendar-Clock app generates an appropriate astronomical or astrological chart in 2 or 3 dimensions**.

There is a **quality of time** that cannot be communicated just by numbers. Note how the **Earth’s circle of illumination tilts above and below the Earth’s spin axis** as the Sun moves back and forth, north and south on the Sun’s meridian (the Date Indicator) over the course of a seasonal year. The **Twilight Dial** (where the 24 hour number dial turns from white to black) of MONAD shows the time of Sun rise and Sun set at any time of year, at any latitude. The location and phase of the Moon is clearly visible at any time and date. **So much more useful information is communicated at just a glance**.

**Find Your Unique Place in Planet-Centered Space.**

Ordinarily the Hour Hand is set automatically by GPS, reflecting your current location on the globe. **You may want to experiment**, see what time looks like all around the globe by moving the Hour Hand. **Adjusting the latitude slider** displaces the hour hand north or south along the prime meridian. This has an impact on the Twilight Dial, which shows the local time of Sun rise and Sun set. Especially around the time of the solstices, the closer the hour hand gets to the poles, the proportion of night and day changes significantly.

**Adjusting the longitude slider** also has an impact on the Twilight Dial. You can shift the hour hand to any of the 24 different time zones. If you (represented by the green sphere at the base of the hour hand) are located away from the center of the time zone-spanning hour hand, as much as 7.5º away from the prime meridian, this will significantly alter the (mean solar) time of Sun rise and Sun set.

Adjusting these two sliders allows you to **move the hour hand (set the time) anywhere around the globe**. And eventually (coming soon) you will be able to place color-coded icons (pins) here and there around the globe representing friends and family where ever they are.

**There’s Magic In The Past/Future Gap.**

A standard civil calendar contains either 365 or 366 days, starting Jan 1 and ending Dec 31. By comparison, the calendar band of MONAD always shows exactly one seasonal year worth of dates, or 365.24219 days on the average. When the Past/Future Gap is set at 24, **the calendar band shows about 6 months of the past (marked by the blue bracket) and 6 months of the future (unmarked) on the other side of the dial**.

The Past/Future Gap sign is where **the calendar band is being constantly consumed in one direction and created in the opposite direction**. The calendar band is dynamically changing all the time. **No other calendar (or clock) comes close to matching the features of the MONAD** **Calendar-Clock**. (Patented.)