How to determine if an NSDate is today?

ios objective-c cocoa-touch nsdate nscalendar
Seunghoon picture Seunghoon · Feb 25, 2010 · Viewed 70.4k times · Source

How to check if an NSDate belongs to today?

I used to check it using first 10 characters from [aDate description]. [[aDate description] substringToIndex:10] returns string like "YYYY-MM-DD" so I compared the string with the string returned by [[[NSDate date] description] substringToIndex:10].

Is there more fast and/or neat way to check?

Thanks.

Answer

Catfish_Man picture Catfish_Man · Mar 24, 2014

In macOS 10.9+ & iOS 8+, there's a method on NSCalendar/Calendar that does exactly this!

- (BOOL)isDateInToday:(NSDate *)date

So you'd simply do

Objective-C:

BOOL today = [[NSCalendar currentCalendar] isDateInToday:date];

Swift 3:

let today = Calendar.current.isDateInToday(date)

Related questions

Number of days between two NSDates

How could I determine the number of days between two NSDate values (taking into consideration time as well)? The NSDate values are in whatever form [NSDate date] takes. Specifically, when a user enters the inactive state in my iPhone app, …

Read More
How do I get the day of the week with Foundation?

How do I get the day of the week as a string?

Read More
Difference between two NSDate objects -- Result also a NSDate

I have two NSDate objects and I want the difference between the two and the result should again be a NSDate object. Any idea how to achieve this? Here, I am trying to address a unique problem where I have …

Read More