What time is it on Mars?

FREE PUBLIC ASTRONOMY LECTURE

WHAT TIME IS IT ON MARS?

The era will come when we must let go of Earth clock and calendar and
build a new scheme of timekeeping peculiar to our new abodes on
other
worlds. How?

by Dr Michael Allison
Goddard Institute for Space Studies

Thursday 7 August 2008 7PM

NYSkies Astronomy Seminar
St Paul's Lutheran Church
315 West 22nd St
near 8th Av, Chelsea

www.nyskies.org

212-273-5958

"Paz" wrote in message
...
| FREE PUBLIC ASTRONOMY LECTURE
|
| WHAT TIME IS IT ON MARS?


FREE PUBLIC ASTRONOMY ANSWER
Same time as it is on the ISS and near Saturn,
one hour behind the time in London.

http://spaceflight.nasa.gov/realdata/tracking/
http://saturn.jpl.nasa.gov/operations/saturn-time.cfm


Got any more stupid questions?

On Jul 31, 5:08*pm, "Androcles" wrote:
"Paz" wrote in message

...
| FREE PUBLIC ASTRONOMY LECTURE
|
| WHAT TIME IS IT ON MARS?

FREE PUBLIC ASTRONOMY ANSWER
*Same time as it is on the ISS and near Saturn,
one hour behind the time in London.

*http://spaceflight.nasa.gov/realdata/tracking/
*http://saturn.jpl.nasa.gov/operations/saturn-time.cfm

Got any more stupid questions?

Nope. These are still ganged to the concepts of time ON EARTH. When we
LEAVE Earth and work on an other planet, we can not keep the LOCAL
PLANET'S time with Earth concepts. A new 'day', and 'year' have to be
worked out. It's NOT a trvial question. Come to the lecture.

"Paz" wrote in message
...
On Jul 31, 5:08 pm, "Androcles" wrote:
"Paz" wrote in message

...
| FREE PUBLIC ASTRONOMY LECTURE
|
| WHAT TIME IS IT ON MARS?

FREE PUBLIC ASTRONOMY ANSWER
Same time as it is on the ISS and near Saturn,
one hour behind the time in London.

http://spaceflight.nasa.gov/realdata/tracking/
http://saturn.jpl.nasa.gov/operations/saturn-time.cfm

Got any more stupid questions?

Nope. These are still ganged to the concepts of time ON EARTH.

--------------------------------------------------------------------
Yes, that is what we homo sapiens sapiens use for our GPS.
What little green men, robots and homo neanderthalensis with their
Julian calendar use, sols on Mars with a long year, may be as
different as the metric system is from imperial units, but I for
one will continue to use Earth time in agreement with NASA-JPL.
Roman miles and Mars minutes don't appeal to me much.
=======================================
When we
LEAVE Earth and work on an other planet, we can not keep the LOCAL
PLANET'S time with Earth concepts.
============================================
You'll miss "Coronation Street" on the telly, then.
Those poor people in the ISS aging a day every 90 minutes
because they left Earth...
============================================
A new 'day', and 'year' have to be
worked out. It's NOT a trvial question. Come to the lecture.
============================================
Come to YOUR lecture? HAHAHAHA!
You must hallucinate I'm planning on designing a Martian grandfather
clock, which would be stupid of me.
After you've terraformed Antarctica, a whole continent with plenty of
water, ideal atmosphere, beautiful Earthlike gravity, and after you've
grown grapes there in the six months of continuous sunshine, then
I'll consider mining for gold or diamonds in some other planet's
hostile environment. BTW, what's the local time at the South Pole?

On 2008-07-31, Androcles wrote:

After you've terraformed Antarctica, a whole continent with plenty of
water, ideal atmosphere, beautiful Earthlike gravity, and after you've
grown grapes there in the six months of continuous sunshine, then
I'll consider mining for gold or diamonds in some other planet's
hostile environment. BTW, what's the local time at the South Pole?

The Amundsen-Scott base keeps New Zealand time.

--
Andrew Smallshaw

"Andrew Smallshaw" wrote in message
...
| On 2008-07-31, Androcles wrote:
|
| After you've terraformed Antarctica, a whole continent with plenty of
| water, ideal atmosphere, beautiful Earthlike gravity, and after you've
| grown grapes there in the six months of continuous sunshine, then
| I'll consider mining for gold or diamonds in some other planet's
| hostile environment. BTW, what's the local time at the South Pole?
|
| The Amundsen-Scott base keeps New Zealand time.

Uh huh... and what about Faraday and Mid-Point Charlie and McMurdo and ...

http://www.gdargaud.net/Antarctica/RadarSat.html


Even in Iceland its pretty hard to pin down the time of sunset and that's a
well
populated island in the middle of the Atlantic Ocean. Not too many palm
trees
but lots of glorious sunshine and the hot springs make it an attractive
place to
live, much better than Mars.

On Aug 1, 12:49*am, "Androcles" wrote:
*BTW, what's the local time at the South Pole?

There is only one correct answer - any time you like

On Thu, 31 Jul 2008 15:02:43 -0700 (PDT), Paz
wrote:

Nope. These are still ganged to the concepts of time ON EARTH. When we
LEAVE Earth and work on an other planet, we can not keep the LOCAL
PLANET'S time with Earth concepts. A new 'day', and 'year' have to be
worked out. It's NOT a trvial question. Come to the lecture.

Sounds like an interesting talk.

I think most people recognize that there needs to be a unified timebase
that is independent of any local time. What they called "stardate" on a
certain popular TV series. I expect that will be UT or one of its minor
variations for a very long time to come.

Separately, there will be local time systems if we settle other planets.
Mars will probably end up with its days divided into 24 hours, just like
on Earth. I'd expect people there to run their own calendar, but convert
it to UT (stardate) as required- not usually for day-to-day stuff.

Things get more interesting if we settle places that don't have a
natural day, or that have an unworkably long year in human terms.

If you attend the lecture, and there are interesting ideas to report,
please post them back here.
_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

On Jul 31, 4:02 pm, Paz wrote:

Nope. These are still ganged to the concepts of time ON EARTH. When we
LEAVE Earth and work on an other planet, we can not keep the LOCAL
PLANET'S time with Earth concepts. A new 'day', and 'year' have to be
worked out. It's NOT a trvial question. Come to the lecture.

Still, he is _partly_ right. Or, more precisely, it is the same time
on Mars as it is on Earth plus or minus the amount of time it takes
light to travel from the Earth to Mars.

If people on Mars live underground, and use artificial lighting
instead of sunlight brought in by mirrors, then they can tell time by
Julian seconds.

Only if the Martian time of day is important to them would they need
to concern themselves with a native calendrical and horological
system, which is, of course, the topic of the lecture.

I've addressed that topic myself, on
http://www.quadibloc.com/science/cal05.htm

John Savard

"Quadibloc" wrote in message
...
| On Jul 31, 4:02 pm, Paz wrote:
|
| Nope. These are still ganged to the concepts of time ON EARTH. When we
| LEAVE Earth and work on an other planet, we can not keep the LOCAL
| PLANET'S time with Earth concepts. A new 'day', and 'year' have to be
| worked out. It's NOT a trvial question. Come to the lecture.
|
| Still, he is _partly_ right. Or, more precisely, it is the same time
| on Mars as it is on Earth plus or minus the amount of time it takes
| light to travel from the Earth to Mars.

Still, you are _partly_ wrong. It is the same time on Mars as it is on Earth
STOP.

(plus or minus the amount of time it takes a turtle or a sweet pea to travel
from the Earth to Mars).

Why are you confusing message delivery with time?
What's light got to do with it?
Roemer measured the speed of light by knowing the eclipse of a Jovian
moon was at the same time on Jupiter as it is on Earth.