Blancpain presents a 3D animation of the running equation of time presented at Baselworld 2011. More Blancpain on: www.blancpain.com / blancpain1735 / blancpain
Isn't the Equation of Time actually the calculated difference between Apperant Solar Time and "Mean Time"? Civil Time is calculated for a "Standard Meridian". Example: for Pacific Standard Time, our "Standard Time Meridian" is the 120 degrees WEST longitude line. BUT I live nearly 4 degrees further west!
No. What you describe exists but Equation of Time exists due to differences in how long it takes earth to go from one solar noon to the next caused by the earth's movement through space (revolution) speeding up and slowing down. When closer to the sun, it takes longer for the earth to go from one solar noon to the next and vice versa when it moves slower. The difference from one solar noon to the next can cause a watch to be as much as 16-17 minutes ahead or behind solar time. In your case, you need to add 16 minutes to a sundial due to your location. As for what you are referring to, each degree east or west of the time zone meridian you need to add or subtract about 4 minutes (add if west of the meridian, subtract if east). There are lots of good videos on Eq. of Time on CZcams. Not found as many on time zone variations but if you go to sundials.org (I think), you should find lots of stuff on anything sundial related. BOTH OF THESE FACTORS MUST BE ACCOUNTED FOR WHEN READING A SUNDIAL. Oh, and don't forget DST. Hope this makes sense.
Outstanding - the ingenuity to make such a thing possible.. in watch size!! Blows my mind. I WILL find and buy this watch one day.
Simply beautiful ... if such can be said about such a magnificent complication! ;-)
There's an error at 2:15. The graphic reads 11.16 but 12.16 is meant.
Isn't the Equation of Time actually the calculated difference between Apperant Solar Time and "Mean Time"?
Civil Time is calculated for a "Standard Meridian". Example: for Pacific Standard Time, our "Standard Time Meridian" is the 120 degrees WEST longitude line. BUT I live nearly 4 degrees further west!
No. What you describe exists but Equation of Time exists due to differences in how long it takes earth to go from one solar noon to the next caused by the earth's movement through space (revolution) speeding up and slowing down. When closer to the sun, it takes longer for the earth to go from one solar noon to the next and vice versa when it moves slower. The difference from one solar noon to the next can cause a watch to be as much as 16-17 minutes ahead or behind solar time. In your case, you need to add 16 minutes to a sundial due to your location. As for what you are referring to, each degree east or west of the time zone meridian you need to add or subtract about 4 minutes (add if west of the meridian, subtract if east). There are lots of good videos on Eq. of Time on CZcams. Not found as many on time zone variations but if you go to sundials.org (I think), you should find lots of stuff on anything sundial related. BOTH OF THESE FACTORS MUST BE ACCOUNTED FOR WHEN READING A SUNDIAL. Oh, and don't forget DST. Hope this makes sense.