Elapse

let days: TimeInterval = 3.days // 3 * 24 * 60 * 60
let hours: TimeInterval = 3.hours // 3 * 60 * 60
let minutes: TimeInterval = 3.minutes // 3 * 60
let seconds: TimeInterval = 3.seconds // 3.0
let mills: TimeInterval =  3.milliseconds // 0.003

let time: TimeInterval = 3.days + 3.hours + 3.minutes

let input: TimeInterval = 30.minutes + 30.seconds

let output1 = input.components(of: [.minutes, .seconds])
print("\(output1.minutes):\(output1.seconds)") // "3:30"

let output2 = input.components(of: [.minutes])
print("\(output2.minutes)min") // "30min"

// You can also set the rounding mode. the default value is .floor
let output3 = input.components(of: [.minutes], roundingMode: .ceiling)
print("\(output3.minutes)min") // "31min"

let output4 = input.components(of: [.minutes], roundingMode: .halfAwayFromZero)
print("\(output4.minutes)min") // "31min"

let output5 = (input - 1.seconds).components(of: [.minutes], roundingMode: .halfAwayFromZero)
print("\(output5.minutes)min") // "30min"

let output6 = input.components(of: [.hour], roundingMode: .halfAwayFromZero)
print("\(output6.hours)hour") // "1hour"

import PackageDescription

let package = Package(
    name: "YOUR_PROJECT_NAME",
    targets: [],
    dependencies: [
        .Package(url: "https://github.com/yshrkt/Elapse.git"),
    ]
)