Timetable for Sunrise

[winkelried]

I work on a scenario where the attacker approaches under the cover of the night and then launches the attack at sunrise. selected Dawn as "Daylight" - which time do I have to put in to stay approx 15 minutes in the dark and then to see the sun rise?

[MikeyD]

It literally all has to do with what day, week and month you're playing. If you Google actual sunrise times for July 14, for example you will find the time around 5:37 AM. You punch July 14 at 5:40 in the game editor and dawn's rosy glow appears. I recall working on a CMSF predawn scenario, I was getting vexed because it would be light, then get darker, then sunrise. I eventually discovered on that particular day a big full moon was setting just ten minutes before sunrise and was throwing off my lighting conditions.

[winkelried]

OK I'll check for August 31st ;-) thx

[Chainsaw]

Any clue WHERE you find 1944 sunset timetables? a quick google didnt give much at all. Thanks

[A Canadian Cat]

I found a few - not really tables but you enter a date and place and it spits out an answer.

This one is cool:

http://www.esrl.noaa.gov/gmd/grad/solcalc/

Use the map to centre the place you want the times for. It suggests clicking on a pre-placed pin that will be in the same time zone. For example Paris and then move the map so the place you want is centred. Then enter the date out pops the times.

But here are two more:

http://aa.usno.navy.mil/data/docs/RS_OneDay.php

http://www.sunrisesunset.com/predefined.asp

[JonS]

Ephemeris

CM:BN Normandy, France, 1944

	Day	Dawn	Sunrise	Sunset	Dusk	Moonrise Moonset Phase[/B]

June	6	0439	0606	2155	2307	2130	0552	Full

	7	0438	0605	2155	2308	2242	0634		

	…	…	…	…	…	…	…	…	

	26	0435	0601	2157	2319	1144	0103		

	27	0435	0601	2157	2319	1246	0131		

	28	0436	0601	2157	2318	1348	0157	1st ¼  	

	29	0437	0602	2157	2318	1452	0223		

	30	0438	0602	2157	2318	1557	0247		

July	1	0438	0603	2157	2318	1659	0312		

	2	0439	0603	2156	2317	1802	0327		

	3	0440	0604	2156	2317	1908	0343		

	4	0441	0604	2155	2316	2015	0424		

	5	0442	0605	2155	2315	2121	0506		

	6	0443	0605	2154	2314	2227	0609	Full	

	7	0444	0606	2154	2314	2312	0713		

	8	0445	0606	2153	2313	2357	0825		

	9	0446	0607	2152	2311	None	0937		

	10	0448	0608	2151	2310	0029	1050		

	11	0449	0609	2151	2309	0055	1203		

	12	0451	0610	2150	2308	0122	1320		

* These times record when sun/moon events actually occur in CM:BN.

*Dawn and dusk times are approximate, and fairly subjective. First light is probably somewhere around 1 hr before ‘dawn’, and last light something like 1 hr after ‘dusk’. The summer days in Normandy are VERY long.

* Full Calendar here: http://www.sunrisesunset.com/calendar.asp?comb_city_info=Carentan;-1.2553;49.2969;0;2&month=7&year=1944&time_type=1&use_dst=2&want_twi_civ=1&want_twi_naut=1&want_mrms=1&want_mphase=1 Note that this has time offset by approx 1 hr compared to the above table. I believe this is because CM:BN takes into account the Allies working on Double-Daylight Savings time.

[A Canadian Cat]

<snip>

Note that this has time offset by approx 1 hr compared to the above table. I believe this is because CM:BN takes into account the Allies working on Double-Daylight Savings time.

When I use the system on the first link in my previous message I see the same times (well within 10min). It is showing local time and no day light savings.

[GonzoAttacker]

Is Battlefront using Double Daylight Savings that the Allies used??:rolleyes:

[JonS]

*shrug*

Regardless, the times in the table above are correct within the game.

Something I always struggle with, though, is how to relate times gven in books etc to the game. The book says the attack kicked off at 0655hrs. Super. But ... what 0655? Local, BDDST. German? They're all different, and very few relate the time given to something tangible like sunrise or sunset.

[A Canadian Cat]

<snip>The book says the attack kicked off at 0655hrs. Super. But ... what 0655? Local, BDDST. German? They're all different, and very few relate the time given to something tangible like sunrise or sunset.

Plus, just because the attack kicked off at 0655 doesn't mean anything interesting tactically happened right away. There could be half an hour of getting into position and waiting for the scouting reports to come back.

[winkelried]

I work on a scenario where the attacker approaches a village across an open plain under cover of darkness and then attacks at first daylight. looks that they came pretty close under the cover of darkness including the tanks. I want to setup at night visibility + a few meters and then start the scenario 5 or 10 minutes before first daylight.

visibility in a clear night seems to be 394 meters (don't know the moon phase) in CMBN. Hazy reduces this by 86%, light rain by roughly 70% and heavy rain by 90%. Looking at the real weather conditions of the operation I'll go probably for the light or heavy rain.

Is there a table for this?

With growing daylight visibility increases at an average 30% from minute to minute

31.8. 05:50 full night 394m 05:51 423m / 452m / 495m / 527m / 572m etc

[Sergei]

Is Battlefront using Double Daylight Savings that the Allies used??:rolleyes:

In France both sides followed the same time. Normally Central European Time (Berlin time, which German army used everywhere they went) is one hour ahead of Western European Time, but because of double daylight savings used by UK, both Allies and Axis had their clocks set to the same time.

Fun fact: before war France followed GMT, but Germans converted them to CET and they have followed it since.