// 日付形式文字列(ms)をNSdateへ
+(NSDate *)millisecondFormatDateWithString:(NSString *)dateString
{
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy/MM/dd HH:mm:ss.SSS"];
    return [formatter dateFromString:dateString];
}

// 日付形式文字列(ms)をNSdateへ +(NSDate *)millisecondFormatDateWithString:(NSString *)dateString { NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyy/MM/dd HH:mm:ss.SSS"]; return [formatter dateFromString:dateString]; }

// NSdate(ms)を日付形式文字列(ms)へ
+(NSString *)millisecondFormatStringWithDate:(NSDate *)date
{
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy/MM/dd HH:mm:ss.SSS"];
    return [NSString stringWithFormat:@"%@", [formatter stringFromDate:date]];
}

// NSdate(ms)を日付形式文字列(ms)へ +(NSString *)millisecondFormatStringWithDate:(NSDate *)date { NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyy/MM/dd HH:mm:ss.SSS"]; return [NSString stringWithFormat:@"%@", [formatter stringFromDate:date]]; }