Welcome to the Cumulus Support forum.
Latest Cumulus MX V4 release 4.4.2 (build 4085) - 12 March 2025
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
If you are posting a new Topic about an error or if you need help PLEASE read this first viewtopic.php?p=164080#p164080
Latest Cumulus MX V4 release 4.4.2 (build 4085) - 12 March 2025
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
If you are posting a new Topic about an error or if you need help PLEASE read this first viewtopic.php?p=164080#p164080
just an observation
- Orion
- Posts: 277
- Joined: Mon 08 Nov 2010 5:51 pm
- Weather Station: WH1081 (Maplin)
- Operating System: windows 10 64bit
- Location: Paignton Devon UK
- Contact:
just an observation
is this showing that tomorrow the 23rd will be the shortest day, as I thought it was the 21st this year
You do not have the required permissions to view the files attached to this post.
- steve
- Cumulus Author
- Posts: 26672
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: just an observation
It's due to the fact that the routines I use for the length of the day aren't accurate to that degree. I wanted to remove the facility because of it, but lots of people asked for it to stay.
Steve
- mcrossley
- Posts: 14388
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: just an observation
I have accurate routines if you want them, but how about rounding to the nearest minute and dropping the seconds? Sunrise/set is all a bit hit and miss anyway as it depends on elevation, local horizons, atmospheric pressure, temperature, humidity, grandma's maiden name etc.
- steve
- Cumulus Author
- Posts: 26672
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: just an observation
The problem with that is that the difference in day length would then be limited to a very small range of figures; typically zero or one for a lot of the year. I did wonder about rounding to a number of seconds, though; 5 or 10 perhaps should do it.mcrossley wrote:I have accurate routines if you want them, but how about rounding to the nearest minute and dropping the seconds?
Steve
-
RayProudfoot
- Posts: 3602
- Joined: Wed 06 May 2009 6:29 pm
- Weather Station: Davis VP2 with Daytime FARS
- Operating System: Windows XP SP3
- Location: Cheadle Hulme, Cheshire, England
- Contact:
Re: just an observation
I thought it timely to mention that the summer / winter solstice occurs in about 6 hours time. Cumulus will probably report that Saturday 22nd will be a few seconds longer than Friday 21st June.
This is not a bug folks.
This is not a bug folks.