Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

a glimmer

Old 12-15-14, 06:25 PM
  #1  
rydabent
Senior Member
Thread Starter
 
Join Date: Apr 2010
Location: Lincoln Ne
Posts: 8,781

Bikes: RANS Stratus TerraTrike Tour II

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2192 Post(s)
Liked 552 Times in 331 Posts
a glimmer

It depends on where you live in your respective time zones, but in my case here in Lincoln, we have gained one minute of sun light in the evening. The morning sun tho is a scrooge, it doesnt start comming up earlier until the middle of Jan.

As a hater of winter weather I take that one minute of more sun in the evening as a harbinger of what will be a long time in comming. Gads I hate winter!!!!!
rydabent is offline  
Old 12-15-14, 06:30 PM
  #2  
Steve B.
Senior Member
 
Join Date: Jul 2007
Location: South shore, L.I., NY
Posts: 4,775

Bikes: Flyxii FR322, Cannondale Topstone, Miyata City Liner, Specialized Chisel

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1816 Post(s)
Liked 535 Times in 353 Posts
Originally Posted by rydabent View Post
It depends on where you live in your respective time zones, but in my case here in Lincoln, we have gained one minute of sun light in the evening. The morning sun tho is a scrooge, it doesnt start comming up earlier until the middle of Jan.

As a hater of winter weather I take that one minute of more sun in the evening as a harbinger of what will be a long time in comming. Gads I hate winter!!!!!
How exactly is this possible as we are not yet past the winter solstice. I thought every day got shorter, in the northern hemisphere until 12/21 'ish.

EDIT: But I went and looked it up and you are correct, you gain 2 minutes of time at sunset but lose 4 minutes in the morning, between now and 12/21.

I'm curious as to the reason.

Last edited by Steve B.; 12-15-14 at 06:37 PM.
Steve B. is offline  
Old 12-16-14, 08:00 AM
  #3  
BobbyG
Senior Member
 
BobbyG's Avatar
 
Join Date: Jan 2009
Location: Colorado Springs, CO
Posts: 5,155

Bikes: 2015 Charge Plug, 1997 Nishiki Blazer, 1984 Nishiki International

Mentioned: 53 Post(s)
Tagged: 0 Thread(s)
Quoted: 1114 Post(s)
Liked 846 Times in 413 Posts
Originally Posted by Steve B. View Post
...you gain 2 minutes of time at sunset but lose 4 minutes in the morning, between now and 12/21.

I'm curious as to the reason.
Daylight Savings, as with all savings programs administered by government or large banks and corporations is illusory, with small charges and fees, diminishing any true gains. These small micro-liens are cleverly hidden. Like "cash-back programs" and "rewards" programs there is no free lunch and the "house" always wins in the end. Over the last century the international time-keeping cabal has filched on the average 6.33 years of daylight from each man, woman and child that has lived, and they are keeping it hidden in a cave masquerading as a diamond mine in South Africa.
BobbyG is offline  
Old 12-16-14, 10:01 AM
  #4  
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 23,598

Bikes: Some silver ones, a red one, an orange one and a few titanium ones

Mentioned: 119 Post(s)
Tagged: 1 Thread(s)
Quoted: 3902 Post(s)
Liked 1,337 Times in 824 Posts
Originally Posted by Steve B. View Post
How exactly is this possible as we are not yet past the winter solstice. I thought every day got shorter, in the northern hemisphere until 12/21 'ish.

EDIT: But I went and looked it up and you are correct, you gain 2 minutes of time at sunset but lose 4 minutes in the morning, between now and 12/21.

I'm curious as to the reason.
A tilted axis.

And you aren't quite right about the gain and loss. This is a graph of the sunrise/sunset times around the winter solstice for Denver (it's different depending on your latitude and you can find the tables for anywhere in the world at the US Naval Observatory website



The earliest sunset for Denver (and anyone along the 40th parallel) occurred on December 5th. If you look at the raw data, the sun sets at 1635 for 6 days until 12/11. Then it sets at 1636 and stays there for 5 days, then at 1637 for 3 days and so on.

Sunrise, on the other hand doesn't hit its latest sunrise (0722) until 1/5. It does stay at the same time (0721) for 7 days before 1/5 and then goes back to 0721 for another 7 days. December 21 just happens to be the day that is has the least amount of sun light where it falls between the two curves.

The summer solstice is similar but the curve maximums are closer together.

The bad news, however, is that we have another month of dark mornings.
__________________
Stuart Black
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
cyccommute is offline  
Old 12-16-14, 10:14 AM
  #5  
rydabent
Senior Member
Thread Starter
 
Join Date: Apr 2010
Location: Lincoln Ne
Posts: 8,781

Bikes: RANS Stratus TerraTrike Tour II

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2192 Post(s)
Liked 552 Times in 331 Posts
The location of your town in your time zone skews the sun rise and sunset off Dec 21
rydabent is offline  
Old 12-16-14, 12:46 PM
  #6  
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 23,598

Bikes: Some silver ones, a red one, an orange one and a few titanium ones

Mentioned: 119 Post(s)
Tagged: 1 Thread(s)
Quoted: 3902 Post(s)
Liked 1,337 Times in 824 Posts
Originally Posted by rydabent View Post
The location of your town in your time zone skews the sun rise and sunset off Dec 21
The times are a little different but the trend is the same for similar latitudes. The values are also theoretical, i.e. calculated. Denver's sunset is several minutes before the USNO "sunset". Having 14,000 foot mountains 20 to 40 miles to the west blocks the sun more than in Lincoln.
__________________
Stuart Black
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
cyccommute is offline  
Old 12-16-14, 01:03 PM
  #7  
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 23,598

Bikes: Some silver ones, a red one, an orange one and a few titanium ones

Mentioned: 119 Post(s)
Tagged: 1 Thread(s)
Quoted: 3902 Post(s)
Liked 1,337 Times in 824 Posts
Originally Posted by Steve B. View Post
How exactly is this possible as we are not yet past the winter solstice. I thought every day got shorter, in the northern hemisphere until 12/21 'ish.

EDIT: But I went and looked it up and you are correct, you gain 2 minutes of time at sunset but lose 4 minutes in the morning, between now and 12/21.

I'm curious as to the reason.
My previous answer was a bit to glib. The tilt to our axis as well as our elliptical orbit around the sun and some tricky celestial mechanics are the reason for what I detailed above. The guys at Cornell have an explanation that takes a couple of readings to understand
__________________
Stuart Black
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
cyccommute is offline  
Old 12-16-14, 01:26 PM
  #8  
hueyhoolihan
Senior Member
 
Join Date: Dec 2010
Location: Above ground, Walnut Creek, Ca
Posts: 6,681

Bikes: 8 ss bikes, 1 5-speed touring bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by Steve B. View Post
How exactly is this possible as we are not yet past the winter solstice. I thought every day got shorter, in the northern hemisphere until 12/21 'ish.

EDIT: But I went and looked it up and you are correct, you gain 2 minutes of time at sunset but lose 4 minutes in the morning, between now and 12/21.

I'm curious as to the reason.
time zones are an approximation. they don't provide infinite granularity. and as mentioned, celestial mechanics are not as an exact science.
hueyhoolihan is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
parkbrav
Winter Cycling
32
03-10-19 06:36 AM
matimeo
Commuting
25
12-30-11 07:46 AM
rumrunn6
Commuting
45
12-18-09 12:52 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.