swift get time difference between two dates code example
Example 1: get hours difference between two dates swift
let cal = Calendar.current
let components = cal.dateComponents([.hour], from: date2, to: date1)
let diff = components.hour!
Example 2: get day difference between two dates swift
let calendar = Calendar.current
// Replace the hour (time) of both dates with 00:00
let date1 = calendar.startOfDay(for: firstDate)
let date2 = calendar.startOfDay(for: secondDate)
let components = calendar.dateComponents([.day], from: date1, to: date2)
return components.day