iOS Standard time and timestamp convert each other

Source: Internet
Author: User
Tags set time

iOS Standard time and timestamp convert each other(2012-07-18 17:03:34) reproduced
Tags: ios timestamp Standard Time format conversion Talk Category: iphone development
Set time display format:     nsstring* timestr = @ "2011-01-26 17:40:50";     NSDateFormatter *formatter = [[[[NSDateFormatter alloc] init] Autorelease];    [formatter Setdatestyle:nsdateformattermediumstyle];    [formatter SetTimeStyle: Nsdateformattershortstyle];       [formatter setdateformat:@ "Yyyy-mm-dd HH:mm:ss"]; ----------set the format you want, the difference between HH and HH: 12-hour, 24-hour        //set time zone, this is sometimes important for time processing     //For example, you publish information in the country, the user in another time zone abroad, you want to let the user see the correct release time to pay attention to time zone settings, time conversion.     // For example, if you publish for 2010-01-26 17:40:50, how much time should the user see in the UK and Ireland?     //they have a 7-hour time difference with us, so they're not there yet. That's what's going to happen in the future.        nstimezone* TimeZone = [Nstimezone timezonewithname:@ "Asia/ Shanghai "];    [formatter settimezone:timezone];        nsdate* date = [Formatter datefromstring:timeSTR]; ------------turn the string into nsdate             by formatter    nsdate *datenow = [NSDate date];//now time, you can output to see what the format is         NSString *nowtimestr = [Formatter stringfromdate:datenow];//----------to convert nsdate in formatter format to nsstring time to time stamp method:     nsstring *TIMESP = [NSString stringwithformat:@ "%d", (long) [Datenow timeIntervalSince1970]];     nslog (@ "timesp:%@", TIMESP); The timestamp value   method of time stamp     nsdate *confromtimesp = [NSDate dateWithTimeIntervalSince1970 : 1296035591];    nslog (@ "1296035591  =%@", CONFROMTIMESP);          nsstring *confromtimespstr = [Formatter stringFromDate: Confromtimesp];    nslog (@ "confromtimespstr =  %@", Confromtimespstr), method of time-stamp transfer:
nsdateformatter* formatter = [[NSDateFormatter alloc] init];
[Formatter Setdatestyle:nsdateformattermediumstyle];
[Formatter Settimestyle:nsdateformattershortstyle];
[Formatter setdateformat:@ "YYYYMMDDHHMMSS"];
NSDate *date = [Formatter datefromstring:@ "1283376197"];
NSLog (@ "date1:%@", date);
[Formatter release];

iOS Standard time and timestamp convert each other

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.