On Earth, we have a very powerful method of relative age dating: fossil assemblages.

Time periods of dating video

Relative-age time periods are what make up the Geologic Time Scale.

The Geologic Time Scale is up there with the Periodic Table of Elements as one of those iconic, almost talismanic scientific charts.

For instance, if the Effective Date of your Contract is February 4, 2013 and the Initial Deposit is due 3 days after Effective Date, then Day 1 would be February 5 so the Initial Deposit would be due by p.m. Most time periods run from the Effective Date of the Contract, so it is important the parties sign and date when signing the contract, as well as initialing and dating any changes made to the Contract.

When dealing with the FR/BAR Contract, if a time period ends on a Saturday, Sunday or national legal holiday, then it would be extended to p.m.

Long before I understood what any of it meant, I'd daydream in science class, staring at this chart, sounding out the names, wondering what those black-and-white bars meant, wondering what the colors meant, wondering why the divisions were so uneven, knowing it represented some kind of deep, meaningful, systematic organization of scientific knowledge, and hoping I'd have it all figured out one day.

This all has to do with describing how long ago something happened. There are several ways we figure out relative ages.Therefore, if your Closing is February 28, 2013, and the title period was left blank, then the title would be due February 22.You would count back 5 days which ends up on Saturday, February 23.Otherwise, if the time period just calls for 5 days prior to Closing and doesn’t state “at least”, then it would be extended to Monday as the next business day.With regards to acceptance deadlines, technically it is a time period and would fall under Standard F if the time period ends on a Saturday, Sunday or national legal holiday and be extended to the next business day.That's why geologic time is usually diagramed in tall columnar diagrams like this.