Reb eliezer I have an easy way to remind you that October 7 is the tekufa
As you may recall In 2009 We said Birchas Hachama
This was on Erev PEsach ( remeber the fuss, how this is the first time since nes Purim, ( never mind that Purim which wasnt during birchas hachama, and it was Erev PEsach in 1925)
At any rate IT was April 8. and iyh in 2037 it will be April 8 and so on for the remainder of the 21st century.
Birchas hacham is when the Tekufas nissan is at the start of Yom revii ie 6 PM on april Tue 7 then birchas hacham is recirted that day ie Wed April 8.
A tekufa is 91 days 7.5 hours. ( a quarter of 365 days 6 hrs)
Tekufas tammuz 2009 was Wed Jul 8 1:30 AM
Tekuffas Tishrei 2009 was Wed OCt 7 9 AM
Shifting gears adding a 6 hours
Tekufas tishrei 2010 was Wed Oct 7 3 PM
Tekufas tishrei 2011 was Wed Oct 7 9 PM (<- halachickly thursday)
then there is an extra day in february 2012
so tekufas tishrei 2012 was Wed Oct 7 3 AM
etc but it is always on OCt 7 (during this and last centuries)
see you at the next one in under 17 years!