Swfit- Check whether current time is between two time string - ios

Question

How to check if the current time is between two-time strings in the following format.
HH:MM AM/PM
say if
startTime = "10:30 AM"
endTime = "06:30 PM"
how to check if currentTime() value is in between start and end times?

Answer 1

You can set the date formatter defaultDate for today, parse the date strings, create a DateInterval with the start and end date and check if it contains now Date():
extension Formatter {
static let today: DateFormatter = {
let dateFormatter = DateFormatter()
dateFormatter.locale = .init(identifier: "en_US_POSIX")
dateFormatter.defaultDate = Calendar.current.startOfDay(for: Date())
dateFormatter.dateFormat = "hh:mm a"
return dateFormatter
}()
}
func checkIfCurrentTimeIsBetween(startTime: String, endTime: String) -> Bool {
guard let start = Formatter.today.date(from: startTime),
let end = Formatter.today.date(from: endTime) else {
return false
}
return DateInterval(start: start, end: end).contains(Date())
}
let startTime = "10:30 AM"
let endTime = "06:30 PM"
checkIfCurrentTimeIsBetween(startTime: startTime, endTime: endTime) // true

Answer 2

You can use Swift's Dateformatter() to encode and compare dates:
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "hh:mm a"
dateFormatter.locale = Locale.init(identifier: "en_GB")
dateFormatter.defaultDate = Calendar.current.startOfDay(for: Date())
dateFormatter.amSymbol = "AM"
dateFormatter.pmSymbol = "PM"
let startTimeFormatted = dateFormatter.today.date(from: startTime)
let endTimeFormatted = dateFormatter.today.date(from: endTime)
//Now you can compare the two, e.g.
if startTimeFormatted > currentDate() && currentDate() < endTimeFormatted{
return true
}