Basic use of IOS nsdate dates

String zonestr timestamp #pragma mark timestamp turns into time

-(nsstring *) Timestampintotime: (nsstring *) zonestr{

//timestamp string converted to date string

Long long index = [zonestr longlongvalue];

nsdate *sinedate = [nsdate dateWithTimeIntervalSince1970: index/ ];

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

//yyyy mm month dd Day HH24 hours HH12 hours mm minutes ss seconds mmmm month

[dateformatter setdateformat:@ "Yyyy-mm-dd HH:mm:ss MMMM"];

//date turn into time

nsstring *datastring = [dateformatter stringfromdate: sinedate];

return datastring;

}

A string that #pragma mark time to turn into a timestamp

-(nsstring *) timestamp{

//Get the system time

nsdate *date = [nsdate date];

//time stamp

long secondtimezone = [date timeIntervalSince1970]*;

//timestamp turns into a string

nsstring *zonestr = [nsstring stringwithformat:@ "%@"@ (secondtimezone )];

return zonestr;

}

#pragma mark Format time

-(nsstring *) formattedtime{

//Get the system time

nsdate *date = [nsdate date];

//Time to format the system

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

//yyyy mm month dd Day HH24 hours HH12 hours mm minutes ss seconds mmmm month

[dateformatter setdateformat:@ "Yyyy-mm-dd HH:mm:ss MMMM"];

//date turn into time

nsstring *datastring = [dateformatter stringfromdate:d ate];

return datastring;

}

#pragma mark to format a string of time datastr for the specified time zone

-(nsstring *) Timezonetimeformat: (nsstring *) datastr{

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

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

nsdate *date = [dateformatter datefromstring:d atastr];

Dateformatter. TimeZone = [nstimezone timezonewithname:@ "Asia/shanghai"];

nsstring *strdate = [dateformatter stringfromdate:d ate];

return strdate;

}

Basic use of IOS nsdate dates