Cocoa in a Nutshell

Name

NSTimeZone — Mac OS X 10.0

Synopsis

This class represents a time zone—objects that store information about a geographic time zone, such as the name, abbreviation, time from GMT, whether or not daylight savings is in effect, and so on.

NSTimeZone is toll-free bridged with the Core Foundation type CFTimeZone. As such, NSTimeZone objects can be used interchangeably with the CFTimeZone pointer type, CFTimeZoneRef.

@interface NSTimeZone : NSObject <NSCoding, NSCopying>

// Initializers

- (id)initWithName:(NSString *)tzName;

- (id)initWithName:(NSString *)tzName data:(NSData *)aData;

// Class Methods

+ (NSDictionary *)abbreviationDictionary;

+ (NSTimeZone *)defaultTimeZone;

+ (NSArray *)knownTimeZoneNames;

+ (NSTimeZone *)localTimeZone;

+ (void)resetSystemTimeZone;

+ (void)setDefaultTimeZone:(NSTimeZone *)aTimeZone;

+ (NSTimeZone *)systemTimeZone;

+ (id)timeZoneForSecondsFromGMT:(int)seconds;

+ (id)timeZoneWithAbbreviation:(NSString *)abbreviation;

+ (id)timeZoneWithName:(NSString *)tzName;

+ (id)timeZoneWithName:(NSString *)tzName data:(NSData *)aData;

// Instance Methods

- (NSString *)abbreviation;

- (NSString *)abbreviationForDate:(NSDate *)aDate;

- (NSData *)data;

- (NSString *)description;

- (BOOL)isDaylightSavingTime;

- (BOOL)isDaylightSavingTimeForDate:(NSDate *)aDate;

- (BOOL)isEqualToTimeZone:(NSTimeZone *)aTimeZone;

- (NSString ...