Time in Swift

In Swift, you can use the Date struct to work with time. Here are some examples of how to use time in Swift:

### Getting the current date and time:

Use the Date() initializer to get the current date and time:

let now = Date()
print(now) // prints the current date and time

### Formatting dates:

You can use the DateFormatter class to format dates in various ways. Here's an example of how to format a date as a string:

let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd MMM yyyy HH:mm:ss"
let dateString = dateFormatter.string(from: now)
print(dateString) // prints something like "01 Sep 2021 14:53:22"

### Adding or subtracting time:

You can use the Calendar class to add or subtract time from a Date object. Here's an example of how to add 1 day to the current date:

let calendar = Calendar.current
let tomorrow = calendar.date(byAdding: .day, value: 1, to: now)!
print(tomorrow) // prints the date and time that is one day ahead of now

### Comparing dates:

You can use the compare method of the Date class to compare two Date objects. Here's an example of how to check whether a date is in the future:

if tomorrow.compare(now) == .orderedDescending {
    print("tomorrow is in the future")
} else {
    print("tomorrow is not in the future")
}

### Calculating time intervals:

You can use the timeIntervalSince method of the Date class to calculate the time interval between two Date objects. Here's an example of how to calculate the time interval between now and tomorrow:

let timeInterval = tomorrow.timeIntervalSince(now)
print(timeInterval) // prints the number of seconds between now and tomorrow