Semantic-Date

Convert natural language time spans to Date objects

Installation

$ npm install semantic-date

Usage

semanticDate = require 'semantic-date'
 
semanticDate.validate "last year"
> true
 
semanticDate.convert "last year"
> { start: Wed Jan 01 2014 00:00:00 GMT-0500 (EST),
    end: Thu Jan 01 2015 00:00:00 GMT-0500 (EST) }

Provide a Date object as the second parameter to convert to use that date as the reference:

semanticDate.convert "last hour", new Date(2011, 3, 4, 3, 0, 0)
> { start: Mon Apr 04 2011 02:00:00 GMT-0400 (EDT),
  end: Mon Apr 04 2011 03:00:00 GMT-0400 (EDT) }

Supported Semantics

The following are the semantic dates which are currently understood. More and more permutations of the current ones will be added over time. Feel free to send me a PR with your favorite form.

• last minute (up to current time)
• last hour (up to current time)
• last/past 24h/hours (up to current time)
• yesterday
• last week (week before the current)
• past week (7 days)
• last month (month before the current)
• past month (30 days)
• last year (year before the current)
• past year (365 days)
• today (up to current time)
• this week (up to current time)
• this month (up to current time)
• this year (up to current time)
• since 1970 (up to current time)

Hypens and underscores are supported in place of spaces.

Testing

$ npm test

License

MIT