Relative dates

[lorisleiva]

Support for things like

date < "5 days ago"
date >= "last week"
date = "2 years ago"
date = "7 months from now"
date = "past month"
date = "this month"
date = "next month"
date = "upcoming month"
...

The difficulty lies in understanding the boundaries of the unit of time, based on the text.

For example, if we are on the 15th of August:

• "last month" might be 1st—31st of July
• but "past month" might be 15th of July — 15th of August (similarly to "past 31 days" but without having to know how many days there are in the previous month)