# Kotlin 程序：計算兩個時間段之間的差異 > 原文： [https://www.programiz.com/kotlin-programming/examples/difference-time](https://www.programiz.com/kotlin-programming/examples/difference-time) #### 在此程序中，您將學習計算 Kotlin 中兩個時間段之間的時差。 ## 示例：計算兩個時間段之間的差異 ```kt class Time(internal var hours: Int, internal var minutes: Int, internal var seconds: Int) fun main(args: Array<String>) { val start = Time(12, 34, 55) val stop = Time(8, 12, 15) val diff: Time diff = difference(start, stop) print("TIME DIFFERENCE: ${start.hours}:${start.minutes}:${start.seconds} - ") print("${stop.hours}:${stop.minutes}:${stop.seconds} ") print("= ${diff.hours}:${diff.minutes}:${diff.seconds}") } fun difference(start: Time, stop: Time): Time { val diff = Time(0, 0, 0) if (stop.seconds > start.seconds) { --start.minutes start.seconds += 60 } diff.seconds = start.seconds - stop.seconds if (stop.minutes > start.minutes) { --start.hours start.minutes += 60 } diff.minutes = start.minutes - stop.minutes diff.hours = start.hours - stop.hours return diff } ``` 運行該程序時，輸出為： ```kt TIME DIFFERENCE: 12:34:55 - 8:12:15 = 4:22:40 ``` 在上述程序中，我們創建了一個名為`Time`的類，該類具有三個成員變量：`hour`，`minutes`和`seconds`。 顧名思義，它們分別存儲給定時間的`hour`，`minutes`和`seconds`。 `Time`類具有一個構造器，該構造器初始化`hour`，`minutes`和`seconds`的值。 我們還創建了一個靜態函數差異，該差異將兩個`Time`變量作為參數，找到該差異并將其作為`Time`類返回。 以下是等效的 Java 代碼：[用于計算兩個時間段之間的差異的 Java 程序](/java-programming/examples/difference-time "Java program to calculate difference between two time periods")