date-differ

Calculate difference between two dates, with the resolution of days.

Table of contents

• CLI
  • Installation
  • Usage
  • Examples
• Node module
  • Installation
  • Usage
    • Arguments
    • Examples

CLI

Run as a command line program.

Installation

npm install -g date-differ

Usage

date-differ [-f] <date> [[-t] <date>] [-d]

Calculate difference between two dates. Result is relative, for years, months and days, or absolute days.

Parameters:
  -f, --from,  Date from, valid JavaScript date format
  -t, --to,    Date to, valid JavaScript date format
  -d, --days,  Only print days

Examples

$ date-differ -f 2020-11-24 -t 2020-12-24
1 month

$ date-differ -f 2020-11-24 -t 2020-12-24 -d
30 days

Node module

Use in a node script.

Installation

npm install date-differ

Usage

const dateDiffer = require("date-differ");

Arguments

The functions takes an object as its only parameter:

{
  from, // String, a parsable date, defaults to today
  to,   // String, a parsable date, defaults to today
  days, // Boolean, optional, return only days
}

Examples

const result = dateDiffer({
  from: "2020-11-24",
  to: 1608764400000, // 2020-12-24 in milliseconds since Unix Epoch
});

console.log(result); // 1 month

const result = dateDiffer({
  from: "2020-11-24",
  to: "2020-12-24T15:00:00",
  days: true,
});

console.log(result); // 30 days