Have you learned how to calculate time in cold days?

After slight cold 15 days is a bad cold. It will snow heavily at this time, and it may not be as cold as the winter solstice, because it is almost spring, and when it is cold, everyone will prepare for the Spring Festival, and it is the Spring Festival, so everyone still has some rural customs. Sacrifice and New Year's Eve dinner are some things that most rural areas have to do during the severe cold. Do you know that severe cold can be calculated?

Cold time:

Gregorian calendar 65438+1around October 20th. Calculation formula: [Y*D+C]-L

Interpretation of the formula:

Y= the last two digits of the year, D=0.2422, L= leap year, 2 1 century C = 20. 12, and 22 century C=20.84.

For example:

The date of the great cold in 2089 = [89? 0.2422+20.12]-[(89-1)/4] = 41-22 =19,65438+10.

Exception: calculation result in 2082 plus 1 day.

20 13 to 2030 is the exact time of severe cold solar terms;

20 13 severe cold time: 065438+ 1051:42 2014 severe cold time: 065438+10/20/0.

20 15 severe cold time: 065438+1October 20th17: 43:142016 severe cold time: 065438+1October 20th.

20 17 severe cold time:1October 20th 0 15:23:33 20 18 severe cold time:1October 20th 01:08.

20 19 severe cold time: 065438+1October 20th 16:59:27 2020 severe cold time: 065438+1October 20th at 22:54:33.

202 1 severe cold time: 20221October 20th 0 14: 39: 421October 20th 065438+10: 38: 56.

Severe cold time in 2023: 065438+1October 20th16: 29: 20; Severe cold time in 2024: 065438+122:07:08 on October 20th.

Severe cold time in 2025: 10/0/3: 59: 52 on October 20th; Severe cold time in 2026:1October 20th 0 19:44:39.

Severe cold time in 2027: 065438+1October 20th15: 29: 32; severe cold time in 2028: 065438+1October 20th 21:37.

Severe cold time in 2029:1October 20th 013: 00: 32; Severe cold time in 2030: 018: 54: 011October 20th.