如何将此时间戳格式(发送时间: 08:23:38 pm)显示为1分钟前以来

// 获取当前时间戳
var currentTimestamp = Math.floor(Date.now() / 1000);

// 发送时间的小时、分钟和秒转换为秒数
var sendTime = "08:23:38 pm";
var sendTimeArray = sendTime.split(":");
var sendHour = parseInt(sendTimeArray[0]);
var sendMinute = parseInt(sendTimeArray[1]);
var sendSecond = parseInt(sendTimeArray[2].split(" ")[0]);
var sendTimestamp = sendHour * 3600 + sendMinute * 60 + sendSecond;

// 当前时间的小时、分钟和秒转换为秒数
var currentHour = new Date().getHours();
var currentMinute = new Date().getMinutes();
var currentSecond = new Date().getSeconds();
var currentTimestamp = currentHour * 3600 + currentMinute * 60 + currentSecond;

// 计算差值
var timeDifference = currentTimestamp - sendTimestamp;

// 判断差值并显示结果
if (timeDifference < 60) {
  console.log("1分钟前");
} else {
  var minutesAgo = Math.floor(timeDifference / 60);
  console.log(minutesAgo + "分钟前");
}