A time and calendar manipulation library for iOS 9+, macOS 10.11+, tvOS 9+, watchOS 2+, Xcode 8 written in Swift 3.
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README.md

SwiftMoment

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This framework is inspired by Moment.js. Its objectives are the following:

  • Simplify the manipulation and readability of date and interval values.
  • Provide help when parsing dates from various string representations.
  • Simplifying the formatting of date information into strings.
  • Streamlining getting date components (day, month, etc.) from dates and time intervals.

Important: This framework supports iOS 9+, macOS 10.11+, tvOS 9+, watchOS 2+, Xcode 8 and Swift 3.

Installation

SwiftMoment is compatible with Carthage and CocoaPods. With CocoaPods, just add this to your Podfile:

pod 'SwiftMoment'

Mac OS X Notes

  • Drag the created .framework file into the Xcode Project, be sure to tick 'Copy Files to Directory'
  • In the containing applications target, add a new 'Copy File Build Phase'
  • Set the 'Destination' to 'Frameworks'
  • Drag in the created .framework

Examples

To use this library, just import SwiftMoment in your application.

To create new moment instances:

let now = moment()
let yesterday = moment("2015-01-19")

By default, moments are initialized with the current date and time. You can create moments for any... moment in the future or the past; you can do that by passing strings in different formats:

let yesterday = moment("2015-01-19")

You can also do it by directly specifying the components manually:

let today = moment([2015, 01, 19, 20, 45, 34])

You can also use a dictionary with the following keys:

let obj = moment(["year": 2015,
                    "second": 34,
                    "month": 01,
                    "minute": 45,
                    "hour": 20,
                    "day": 19
                ])

When using a [String: Int] dictionary, the order of the keys does not matter. Moreover, only the keys above are taken into account, and any other information is ignored.

There is also an extension to the Int type in Swift, used to create Duration values directly from an integer value:

let duration = 5.hours + 56.minutes

Architecture

The two most important components of this library are the Moment and Duration structures. Moment wraps an NSDate instance, while Duration wraps an NSTimeInterval value.

Both Moment and Duration comply with the Comparable protocols, and include all the required operators. In addition, Moment instances can be subtracted from one another (which yields a Duration) and Duration instances can be added to Moments to create new moments.

Moments and Durations are made as immutable as possible.

Tests

Swift Moment includes a suite of tests showing how to use the different functions of the framework.

Playground

A playground is included in the project to learn how to use the library.

Differences with Moment.js

  • Format strings DD and dd do not yield the same results.

Contributors

Lots of people are actively helping in the development of this library; please check the CONTRIBUTORS file for the full list! Thanks to all :)

License

This project is distributed under a BSD license. See the LICENSE file for details.