kellehe...@gmail.com
2021-09-07 08:35:28 UTC
It is a common mistake that clocks go back in October (in the Northern hemisphere) even though the hour hand also goes back one hour. Clocks go forward to its home in the sunrise/noon/sunset cycle with natural noon as the anchor.
https://www.timeanddate.com/sun/ireland/dublin?month=9&year=2021
Go to the present date and move the Sun back towards sunrise by one hour. This explains 'longer evenings' as the time from sunrise to clock noon becomes asymmetrical with clock noon to sunset when DST is applied.
DST, like RA/Dec and time zones are flexible secondary extensions of the primary 24 hour and Lat/Long systems rather than primary frameworks in themselves.
DST is an experience so it would be helpful to explain it properly as we do not really lose an hour's sunlight and keeping DST would affect the time of sunrise, in Dublin it would happens around 9:30 AM if DST was retained.
https://www.timeanddate.com/sun/ireland/dublin?month=9&year=2021
Go to the present date and move the Sun back towards sunrise by one hour. This explains 'longer evenings' as the time from sunrise to clock noon becomes asymmetrical with clock noon to sunset when DST is applied.
DST, like RA/Dec and time zones are flexible secondary extensions of the primary 24 hour and Lat/Long systems rather than primary frameworks in themselves.
DST is an experience so it would be helpful to explain it properly as we do not really lose an hour's sunlight and keeping DST would affect the time of sunrise, in Dublin it would happens around 9:30 AM if DST was retained.