Tempometer Form: Calculation help for setting a clock to the sun

Solar Tempometer

Calculate your solar time*

Proceed as follows:

First look up your longitude.

Paris F: 48n85, 2e34, France
New York (US): 40n71, 74w03, US
Amsterdam NETH: 52n36, 4e89, Netherlands
Den Hague NETH: 52n07, 4e30, Netherlands
Tokyo, JAPAN: 35n67, 139e76, Japan

For New York e.g. must below next be entered
at longitude degree 74 and with the minutes 0 !
New York (US) is west (w) of Greenwich.

(Attention: use installs a cookie keeping your setting for 14 days).

(in case a wrong date/time  is indicated,
which rarely may happen for a disturbance,
then please recalculate or reload the page)

The time indicated is the predicted position of the sun
to which twelve o'clock noon time means that the sun is passing the meridian or in its zenith.
The true position of the sun as indicated by a sundial though
may deviate with some minutes from this indication
that is based upon a formal account of the equation of time.
That can be caused by imprecisions in the scale of the sundial in question.

Having a standard-time clock at home or a wristwatch
thus set to the sun requires,
if you want to keep it within a margin of a couple of minutes,
that you correct the time about
once a week according this tempometer,
Not doing this the difference
can quickly amount
to half an hour (from Nov. 5 to Febr. 5 e.g.).
To remind you thereof is the cookie of the Tempometer
that keeps your settings, thus set to eight days
so that after that period the Tempometer again
needs to be set to the longitude.

Correcting for the sake of nature
can best be done with natural regularity:
on Cakra-sundays e.g., see below:

To check this by hand you need to consult
the pages about
the equation of time
and the
For calculating solar time for another date and/or time,
go to the
java-implementation for it.

This is an historical page: it offers,
since 10 Nov. 2005, the first running Tempometer on the internet

Nederlandse versie

*: Solar Time = GMT corrected for the Equation of Time
- Greenwich Mean Time = the time standard for the entire world.
It is mean local time to the longitude of zero irrespective summertime. 
It is also called UTC (Universal Time Coordinated) or worldtime.
The time on your clock differs from this one
depending your time zone and summertime.
- Equation of Time = the difference the clock makes with a sundial.

Also take notice of:

- The Full Calendar of Order (FCO): the table for the equation of time to incorporate this all in your agenda.
- The pages about the
Order of the Sun, the Moon and the Galaxy to understand the source of the time divisions used.
- Freeware webmaster's download to install the tempometer for your own site: (versie 1.07-2).
GameWiki: the Tempometer infopage.
- The order of Time - designs:
the tempometer sophisticated with the original design
A more sophisticated
design of the tempometer.
- Design for a
software-version to change the system clock of your computer.
The Dream: A -bit of a- Science Fiction story on the birth of the Cakra Tempometer.
Wikipedia on Solar time
Wikipedia: astrarium, the type of mechanical time displays that run to the natural order.
This program was written by

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 Oct. 2005 ,The Order of Time