NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateStyle:NSDateFormatterMediumStyle]; [dateFormatter setTimeStyle:NSDateFormatterShortStyle]; //[dateFormatter setDateFormat:@"hh:mm:ss"] [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSS" ]; //毫秒 NSLog(@"Date%@" , [dateFormatter stringFromDate:[NSDate date]]); [dateFormatter release];
Specifier
Description
%%
A '%' character
%a
Abbreviated weekday name
%A
Full weekday name
%b
Abbreviated month name
%B
Full month name
%c
Shorthand for “%X %x ", the locale format for date and time
%d
Day of the month as a decimal number (01-31)
%e
Same as %d but does not print the leading 0 for days 1 through 9 (unlike strftime() , does not print a leading space)
%F
Milliseconds as a decimal number (000-999)
%H
Hour based on a 24-hour clock as a decimal number (00-23)
%I
Hour based on a 12-hour clock as a decimal number (01-12)
%j
Day of the year as a decimal number (001-366)
%m
Month as a decimal number (01-12)
%M
Minute as a decimal number (00-59)
%p
AM/PM designation for the locale
%S
Second as a decimal number (00-59)
%w
Weekday as a decimal number (0-6), where Sunday is 0
%x
Date using the date representation for the locale, including the time zone (produces different results from strftime() )
%X
Time using the time representation for the locale (produces different results from strftime() )
%y
Year without century (00-99)
%Y
Year with century (such as 1990)
%Z
Time zone name (such as Pacific Daylight Time; produces different results from strftime() )
%z
Time zone offset in hours and minutes from GMT (HHMM)
