iOS 获取当前时间戳和时间

NSDate *senddate = [NSDatedate];

NSLog(@"date1时间戳 = %ld",time(NULL));

NSString *date2 = [NSStringstringWithFormat:@"%ld", (long)[senddatetimeIntervalSince1970]];

NSLog(@"date2时间戳 = %@",date2);

NSDateFormatter *dateformatter = [[NSDateFormatteralloc] init];

[dateformatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];

NSString *date1 = [dateformatter stringFromDate:senddate];

NSLog(@"获取当前时间  = %@",date1);

// 时间戳转时间

NSDate *confromTimesp = [NSDatedateWithTimeIntervalSince1970:[senddate timeIntervalSince1970]];

NSString *confromTimespStr = [dateformatterstringFromDate:confromTimesp];

NSLog(@"时间戳转时间  = %@",confromTimespStr);

// 两个时间戳的间隔  返回的是秒

NSTimeInterval time = [now timeIntervalSinceDate:oldDate];

NSLog(@"time:%f",time/60/60/24);