Get the current system time and date

1. Get the current system time and date

//Get system time

NSDate * senddate=[nsdate Date];

NSDateFormatter *dateformatter=[[nsdateformatter alloc] init];

[Dateformatter setdateformat:@"hh:mm"];

NSString * Locationstring=[dateformatter Stringfromdate:senddate];

//[dateformatter setdateformat:@ "Yyyy-mm-dd-hh-mm-ss"];

NSString * Morelocationstring=[dateformatter Stringfromdate:senddate];

Get system date

Nscalendar * Cal=[nscalendar Currentcalendar];

Nsuinteger unitflags=nsdaycalendarunit| Nsmonthcalendarunit| Nsyearcalendarunit;

Nsdatecomponents * conponent= [cal Components:unitflags Fromdate:senddate];

Nsinteger year=[conponent Year];

Nsinteger month=[conponent Month];

Nsinteger Day=[conponent Day];

NSString * nsdatestring= [nsstring stringwithformat:@%4dyear%2d month%2d Day, Year,month,day];

[Dateformatter release];

2. Get NSDate from a string

String stryear="1988";

String strmonth="09";

String strday="18";

String strhour="5";

String strminutes="18";

String strsec="20";

Morelocationstring=[nsstring stringwithformat:@"%s-%s-%s-%s-%s-%s", Stryear.c_str (), StrMonth.c_str (),

Strday.c_str (), Strhour.c_str (), Strminutes.c_str (), Strsec.c_str ()];

Get nsdate based on time string

NSDateFormatter *dateformatter=[[nsdateformatter alloc] init];

[Dateformatter setdateformat:@"Yyyy-mm-dd-hh-mm-ss"];

NSDate * Olddate=[dateformatter datefromstring:morelocationstring];

The nsdate is obtained through the above code.

3. From GMT time, get local time

NSDate * Olddate=[dateformatter datefromstring:morelocationstring];

Nstimeinterval Timezoneoffset=[[nstimezone Systemtimezone] secondsfromgmt];

NSDate * Newdate=[olddate Datebyaddingtimeinterval:timezoneoffset];

Get the current system time and date