NSDate 确定时间区间

项目实际应用

• (BOOL)getDateForNow{
  //获取时间
  NSDate *date = [NSDate date];
  NSTimeZone *zone = [NSTimeZone systemTimeZone];

  NSInteger interval = [zone secondsFromGMTForDate: date];

  NSDate *localDate = [date dateByAddingTimeInterval: interval];

  NSCalendar *calendar = [NSCalendar currentCalendar];

  NSUInteger unitFlags = NSCalendarUnitHour|NSCalendarUnitMinute ;

  NSDateComponents *dateComponent = [calendar components:unitFlags fromDate:date];
  //当前小时
  NSInteger hour = dateComponent.hour;
  //当前分钟
  NSInteger min = dateComponent.minute;

  if (hour < 9) {
  return YES;
  }else if(hour == 9){
  if (min < 30) {
  return YES;
  }else{
  return NO;
  }
  }else if(hour == 15){
  if (min > 30) {
  return YES;
  }else{
  return NO;
  }
  }else if(hour > 15){
  return YES;
  }
  return NO;

}