![]() Usually this is the current calendar for the system. Include the calendar used in a date componenets object. There is a property isValidDate to confirm if you have all the information. If you have a nil value for one component, operations on the dateComponents object will cause an nil error. You assign to date componenets the date dateComponents.year = 2016ĭate components are optional values. Initialize DateComponents like this: var dateComponents = DateComponents() A date component provides a way to add components for a date. What if you want an absolute date? That’s where DateComponents comes into play. This is good for relative dates from a time frame. Prints to the console the Italian date format, 06:59:36 Date Components mediumĭateFormatter.locale = Locale(identifier: "it-it") For example If I want the time for some where with really authentic pizza, dateFormatter.dateStyle =. You can change the locale and use that locale’s format. noneĭate formatters are locale dependent. You’ll find printed something like 11/10/16, 7:20 AMon the console. You’ll get a full date like Thursday, Novemat 6:59:36 AM Central Standard Time. There’s a function on date formatters, string(from:) that returns a string with the formatted date. Start with initializing a date formatter let dateFormatter = DateFormatter()ĭate formatters need you to set a style for the date using the dateStyle property and time property timeStyle. Let’s make the date look better with a date formatter. Gives us a date an hour from now: 12:59:36 +0000. If you want a date where you add or subtract a time interval, use Date(timeInterval:since:) date = Date(timeInterval: hour, since: date) Gives you a date one minute from now 11:59:36 +0000. If you want a time interval different from now, use the constructor Date(timeIntervalSinceNow:) date = Date(timeIntervalSinceNow: minute) You can set a date based on the time interval. I’ll set a few constants using time intervals for day, hour and minute. On the other hand, you might want a measure of time. For the current date, instantiate a variable with the constructor like this: var date = Date() The simplest date representation is from the type Date. The file has the entire lesson, so if you load it on iPad Playgrounds, it will format like this post. You can download here the full lesson as a zip file if you wish, or just type along. In this lesson, let’s look at the different types of dates. You can use them for telling time, scheduling time and setting the differences between two times. There are several different types associated with dates. ![]() Working with dates in iOS10 can be a bit confusing.
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