Swift - 将字符串转换为返回正确日期前一天的日期

Swift - converting string to date returning one day prior to correct date

我正在尝试将日期字符串转换为 Swift 中的日期。我的日期字符串返回为:

“28/05/2020”

我有这个方法:

    private func getDate(date: String) -> Date? {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "dd/MM/yyyy"
    return dateFormatter.date(from: date)
}

但它正在返回:

Optional(2020-05-27 23:00:00 +0000)

为什么返回 27 号而不是 28 号?

试一试,它会起作用

func convertStringintoDate(dateStr:String, dateFormat format:String) -> Date{
    let dateFormatter = DateFormatter()
    dateFormatter.locale = Locale.init(identifier:"en_US_POSIX")
    dateFormatter.timeZone = TimeZone.init(abbreviation: "GMT")
    dateFormatter.dateFormat = format
    if let startDate = dateFormatter.date(from: dateStr){
        return startDate as Date
    }
    return Date() as Date
}

像这样调用这个函数:-

 print(convertStringintoDate(dateStr: "28/05/2020", dateFormat: "dd/MM/yyyy"))