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mtdates's Introduction

MTDates

MTDates is an category on NSDate that makes common date calculations super easy.

Installation

In your Podfile, add this line:

pod "MTDates"

pod? => https://github.com/CocoaPods/CocoaPods/ NOTE: You may need to add -all_load to "Other Linker Flags" in your targets build settings if the pods library only contains categories.

Example Usage

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = @"MM/dd/yyyy hh:mma";
NSDate *date = [formatter dateFromString:@"07/11/1986 11:29am"];

[date year]; 								   					// => 1986
                                               					
[date weekDayOfWeek]; 						   					// => 6
                                               					
[date minuteOfHour];						   					// => 29
                                               					
[[date startOfPreviousYear] year];			   					// => 1985

[[date startOfPreviousYear] stringFromDateWithISODateTime];		// => @"1985-01-01T00:00:00Z"

[[date startOfPreviousMonth] stringFromDatesFullMonth];			// => @"June"

Creating Dates

[NSDate dateFromYear:1986 week:28 weekDay:6 hour:11 minute:29 second:0];

Dates From Other Dates

[date dateByAddingYears:0 months:0 weeks:2 days:0 hours:1 minutes:24 seconds:0];

[date dateYearsAfter:8];

[date oneYearNext];

[date dateMonthsBefore:4];

Comparing Dates

[date isAfter:date2];

[date2 isBefore:date];

[date3 isOnOrBefore:date];

[date2 isWithinSameWeek:date];

[date4 isWithinSameDay:date];

Other Coolness

[date weekdayStartOfCurrentMonth];

[date daysInCurrentMonth];
[date daysInPreviousMonth]
[date daysInNextMonth]

International

[NSDate setFirstDayOfWeek:1];
[NSDate setFirstDayOfWeek:4];

[NSDate setWeekNumberingSystem:MTDateWeekNumberingSystemISO];
[NSDate setWeekNumberingSystem:MTDateWeekNumberingSystemUS];

All methods

+ (void)setLocale:(NSLocale *)locale;
+ (void)setTimeZone:(NSTimeZone *)timeZone;
+ (void)setFirstDayOfWeek:(NSUInteger)firstDay; // Sunday: 1, Saturday: 7
+ (void)setWeekNumberingSystem:(MTDateWeekNumberingSystem)system;

+ (NSDate *)dateFromISOString:(NSString *)ISOString;
+ (NSDate *)dateFromString:(NSString *)string usingFormat:(NSString *)format;
+ (NSDate *)dateFromYear:(NSUInteger)year month:(NSUInteger)month day:(NSUInteger)day;
+ (NSDate *)dateFromYear:(NSUInteger)year month:(NSUInteger)month day:(NSUInteger)day hour:(NSUInteger)hour minute:(NSUInteger)minute;
+ (NSDate *)dateFromYear:(NSUInteger)year month:(NSUInteger)month day:(NSUInteger)day hour:(NSUInteger)hour minute:(NSUInteger)minute second:(NSUInteger)second;
+ (NSDate *)dateFromYear:(NSUInteger)year week:(NSUInteger)week weekDay:(NSUInteger)weekDay;
+ (NSDate *)dateFromYear:(NSUInteger)year week:(NSUInteger)week weekDay:(NSUInteger)weekDay hour:(NSUInteger)hour minute:(NSUInteger)minute;
+ (NSDate *)dateFromYear:(NSUInteger)year week:(NSUInteger)week weekDay:(NSUInteger)weekDay hour:(NSUInteger)hour minute:(NSUInteger)minute second:(NSUInteger)second;
- (NSDate *)dateByAddingYears:(NSInteger)years months:(NSInteger)months weeks:(NSInteger)weeks days:(NSInteger)days hours:(NSInteger)hours minutes:(NSInteger)minutes seconds:(NSInteger)seconds;
+ (NSDate *)dateFromComponents:(NSDateComponents *)components;

+ (NSArray *)shortWeekdaySymbols;
+ (NSArray *)weekdaySymbols;
+ (NSArray *)veryShortWeekdaySymbols;
+ (NSArray *)shortMonthlySymbols;
+ (NSArray *)monthlySymbols;
+ (NSArray *)veryShortMonthlySymbols;

- (NSUInteger)year;
- (NSUInteger)weekOfYear;
- (NSUInteger)weekDayOfWeek;
- (NSUInteger)monthOfYear;
- (NSUInteger)dayOfMonth;
- (NSUInteger)hourOfDay;
- (NSUInteger)minuteOfHour;
- (NSUInteger)secondOfMinute;
- (NSTimeInterval)secondsIntoDay;
- (NSDateComponents *)components;

- (NSDate *)startOfPreviousYear;
- (NSDate *)startOfCurrentYear;
- (NSDate *)startOfNextYear;
- (NSDate *)endOfPreviousYear;
- (NSDate *)endOfCurrentYear;
- (NSDate *)endOfNextYear;
- (NSDate *)oneYearPrevious;
- (NSDate *)oneYearNext;
- (NSDate *)dateYearsBefore:(NSUInteger)years;
- (NSDate *)dateYearsAfter:(NSUInteger)years;
- (NSInteger)yearsSinceDate:(NSDate *)date;
- (NSInteger)yearsUntilDate:(NSDate *)date;

- (NSDate *)startOfPreviousMonth;
- (NSDate *)startOfCurrentMonth;
- (NSDate *)startOfNextMonth;
- (NSDate *)endOfPreviousMonth;
- (NSDate *)endOfCurrentMonth;
- (NSDate *)endOfNextMonth;
- (NSDate *)oneMonthPrevious;
- (NSDate *)oneMonthNext;
- (NSDate *)dateMonthsBefore:(NSUInteger)months;
- (NSDate *)dateMonthsAfter:(NSUInteger)months;
- (NSInteger)monthsSinceDate:(NSDate *)date;
- (NSInteger)monthsUntilDate:(NSDate *)date;

- (NSDate *)startOfPreviousWeek;
- (NSDate *)startOfCurrentWeek;
- (NSDate *)startOfNextWeek;
- (NSDate *)endOfPreviousWeek;
- (NSDate *)endOfCurrentWeek;
- (NSDate *)endOfNextWeek;
- (NSDate *)oneWeekPrevious;
- (NSDate *)oneWeekNext;
- (NSDate *)dateWeeksBefore:(NSUInteger)weeks;
- (NSDate *)dateWeeksAfter:(NSUInteger)weeks;
- (NSInteger)weeksSinceDate:(NSDate *)date;
- (NSInteger)weeksUntilDate:(NSDate *)date;

- (NSDate *)startOfPreviousDay;
- (NSDate *)startOfCurrentDay;
- (NSDate *)startOfNextDay;
- (NSDate *)endOfPreviousDay;
- (NSDate *)endOfCurrentDay;
- (NSDate *)endOfNextDay;
- (NSDate *)oneDayPrevious;
- (NSDate *)oneDayNext;
- (NSDate *)dateDaysBefore:(NSUInteger)days;
- (NSDate *)dateDaysAfter:(NSUInteger)days;
- (NSInteger)daysSinceDate:(NSDate *)date;
- (NSInteger)daysUntilDate:(NSDate *)date;

- (NSDate *)startOfPreviousHour;
- (NSDate *)startOfCurrentHour;
- (NSDate *)startOfNextHour;
- (NSDate *)endOfPreviousHour;
- (NSDate *)endOfCurrentHour;
- (NSDate *)endOfNextHour;
- (NSDate *)oneHourPrevious;
- (NSDate *)oneHourNext;
- (NSDate *)dateHoursBefore:(NSUInteger)hours;
- (NSDate *)dateHoursAfter:(NSUInteger)hours;
- (NSInteger)hoursSinceDate:(NSDate *)date;
- (NSInteger)hoursUntilDate:(NSDate *)date;

- (BOOL)isAfter:(NSDate *)date;
- (BOOL)isBefore:(NSDate *)date;
- (BOOL)isOnOrAfter:(NSDate *)date;
- (BOOL)isOnOrBefore:(NSDate *)date;
- (BOOL)isWithinSameMonth:(NSDate *)date;
- (BOOL)isWithinSameWeek:(NSDate *)date;
- (BOOL)isWithinSameDay:(NSDate *)date;
- (BOOL)isWithinSameHour:(NSDate *)date;
- (BOOL)isBetweenDate:(NSDate *)date1 andDate:(NSDate *)date2;

- (NSString *)stringFromDateWithHourAndMinuteFormat:(MTDateHourFormat)format;
- (NSString *)stringFromDateWithShortMonth;
- (NSString *)stringFromDateWithFullMonth;
- (NSString *)stringFromDateWithAMPMSymbol;
- (NSString *)stringFromDateWithShortWeekdayTitle;
- (NSString *)stringFromDateWithFullWeekdayTitle;
- (NSString *)stringFromDateWithFormat:(NSString *)format;		// http://unicode.org/reports/tr35/tr35-10.html#Date_Format_Patterns
- (NSString *)stringFromDateWithISODateTime;
- (NSString *)stringFromDateWithGreatestComponentsForSecondsPassed:(NSTimeInterval)interval;

+ (NSArray *)datesCollectionFromDate:(NSDate *)startDate untilDate:(NSDate *)endDate;
- (NSArray *)hoursInCurrentDayAsDatesCollection;
- (BOOL)isInAM;
- (BOOL)isStartOfAnHour;
- (NSUInteger)weekdayStartOfCurrentMonth;
- (NSUInteger)daysInCurrentMonth;
- (NSUInteger)daysInPreviousMonth;
- (NSUInteger)daysInNextMonth;
- (NSDate *)inTimeZone:(NSTimeZone *)timezone;

NSDateComponents Additions

NSDateComponents *comps = [NSDateComponents componentsFromString:@"10 October 2009"];
[comps stringValue] 	// => @"10 October 2009"

NSDateComponents *comps = [NSDateComponents componentsFromString:@"October 2009"];
[comps stringValue] 	// => @"October 2009"

NSDateComponents *comps = [NSDateComponents componentsFromString:@"2009"];
[comps stringValue] 	// => @"2009"

NSDateComponents *comps = [NSDateComponents componentsFromString:@"10 2009"];
[comps stringValue] 	// => @"October 2009"

NSDateComponents *comps = [NSDateComponents componentsFromString:@"10 July"];
[comps stringValue] 	// => @"10 July"

NSDateComponents *comps = [NSDateComponents componentsFromString:@"10"];
[comps stringValue] 	// => @"October"

Contributors

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