In Coda, time is a first-class citizen. As you're getting started, we recommend starting to explore the following formulas:

Today( )
Returns the current date.

Now( )
Returns the current date and time. Note: if you're filtering items in a table based on Now( ), they will recalculate every second - we recommend filtering by Today ( ) instead.

Now( ).ToTime()
Returns just the current time.

Created( )
Returns the timestamp for when something was created (e.g. 12/6/2016 1:46:48 PM)

Modified( )
The timestamp for when something was last modified (e.g. 12/8/2016 3:27:12 PM)

Remember, these formulas can be used both in tables as well as in the writing canvas!