Emoji Clock from NSDate 🕛

NSDate Emoji Clock.swift

extension NSDate {
    var emojiDescription: Character {
        let components = NSCalendar.currentCalendar().components(.CalendarUnitHour | .CalendarUnitMinute, fromDate: self)
        
        let clockHour = components.hour % 12
        let isSecondHalfOfHour = components.minute >= 15 && components.minute < 45
        
        switch (clockHour, isSecondHalfOfHour) {
        case (0, false): return "🕛"
        case (0, true):  return "🕧"
        case (1, false): return "🕐"
        case (1, true):  return "🕜"
        case (2, false): return "🕑"
        case (2, true):  return "🕝"
        case (3, false): return "🕒"
        case (3, true):  return "🕞"
        case (4, false): return "🕓"
        case (4, true):  return "🕟"
        case (5, false): return "🕔"
        case (5, true):  return "🕠"
        case (6, false): return "🕕"
        case (6, true):  return "🕡"
        case (7, false): return "🕖"
        case (7, true):  return "🕢"
        case (8, false): return "🕗"
        case (8, true):  return "🕣"
        case (9, false): return "🕘"
        case (9, true):  return "🕤"
        case (10, false): return "🕙"
        case (10, true):  return "🕥"
        case (11, false): return "🕚"
        case (11, true):  return "🕦"
        default: fatalError("An unexpected error has occurred obtaining the clock emoji.")
        }
    }
}