Compare Two Dates Using Swift in iOS

Compare Two Dates

In so many of our app development, we need to compare two dates and then check whether both dates are equal or either small or greater then other date. In iOS, Apple provide compare function to compare to Date objects. In this tutorial i will share the code that shows how to compare two Dates using swift in iOS.

Here we will create two Date objects using DateFormatter and then use compare function of Date class.

Case 1: Both dates are equal

	let formatter = DateFormatter()
	formatter.dateFormat = "dd/MM/yyyy"
	let firstDate = formatter.date(from: "10/08/2017")
	let secondDate = formatter.date(from: "10/08/2017")
	if firstDate?.compare(secondDate!) == .orderedSame {
	print("Both dates are same")
	}

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Case 2: First date is smaller then the second date

	let formatter = DateFormatter()
	formatter.dateFormat = "dd/MM/yyyy"
	let firstDate = formatter.date(from: "8/08/2017")
	let secondDate = formatter.date(from: "10/08/2017")
	if firstDate?.compare(secondDate!) == .orderedAscending {
	print("First Date is smaller then second date")
	}

view rawFirstDateIsSmallerThanSecondDate.swift hosted with ❤ by GitHub

Case 3: First date is greater then the second date

	let formatter = DateFormatter()
	formatter.dateFormat = "dd/MM/yyyy"
	let firstDate = formatter.date(from: "18/08/2017")
	let secondDate = formatter.date(from: "10/08/2017")
	if firstDate?.compare(secondDate!) == .orderedDescending {
	print("First Date is greater then second date")
	}

view rawFirstDateIsGreaterThanSecondDate.swift hosted with ❤ by GitHub

Final notes:
In this tutorial, you learned how to compare two dates using swift in iOS. If you have any queries or suggestion, please feel free to comment.