Is There Any Regularity to Tail Sales?

Time series has these interesting things. One is how it would be in a moving average, like how it relates to the recent days. But then there's also patterns that show up in time serieses weather and retail sales. Do you think seven days ago relates to to day at all? Yes. What about 70 days ago? Sevendy, ye, well, it does relate, but it's harder causen the season change,. Just a ot much less than seven days, yes. And what about 365 days ago? Thataaly, like a year ago? Ye. So we would like to have a nice way to quantify this, wouldn't you think? Quantify the lag