计算时间差并在Google Apps脚本中进行比较可以使用以下代码示例：

function calculateTimeDifference() { var startTime = new Date("January 1, 2022 00:00:00"); var endTime = new Date("January 1, 2023 00:00:00"); var timeDiff = endTime.getTime() - startTime.getTime(); var daysDiff = Math.floor(timeDiff / (1000 * 60 * 60 * 24)); var hoursLeft = Math.floor((timeDiff - (daysDiff * (1000 * 60 * 60 * 24))) / (1000 * 60 * 60)); var minutesLeft = Math.floor((timeDiff - (daysDiff * (1000 * 60 * 60 * 24)) - (hoursLeft * (1000 * 60 * 60))) / (1000 * 60));

Logger.log("Time Difference (Days): " + daysDiff); Logger.log("Time Difference (Hours): " + hoursLeft); Logger.log("Time Difference (Minutes): " + minutesLeft);

if (timeDiff > 0) { Logger.log("End Time is greater than Start Time"); } else if (timeDiff == 0) { Logger.log("End Time and Start Time are equal"); } else { Logger.log("Start Time is greater than End Time"); } }

在上面的示例中，我们使用了Date对象来模拟开始时间和结束时间，并计算时间差。我们使用getTime（）函数来计算时间差，并使用Math.floor（）函数来计算天数，小时和分钟数。

最后，我们使用条件语句来比较开始时间和结束时间并记录日志。