检查当前时间是否在javascript中的特定间隔内 [英] checking if a current time falls in a particular interval in javascript

问题描述

编辑:请注意在答案中引入UTC时间.由于在客户端执行操作会导致不同的时区.

EDIT: Please take care to introduce UTC timing in your answer. Since doing things on client side will lead to different time zones.

在javascript中，我可以按如下方式获取当前时间，小时和分钟:

In javascript, i can get the current time, hour and minute as follows:

var currentTime = new Date();
var currentHour = currentTime.getHours();
var currentMinute = currentTime.getMinutes();

现在，仅当当前时间在固定时间间隔内为false时，我才需要执行任务. 假设有一个fixed time 10:30 AM.如果current time是4 hours behind，current time或fixed time的1 hour ahead，则用户可以执行某些任务.

Now i have to perform a task only if the current time false in an interval with a fixed time. Say there is a fixed time 10:30 AM. Users can perform a certain task iff the current time, is 4 hours behind the current time or 1 hour ahead of the fixed time.

意味着用户可以在6:30 AM到11:30 AM之间执行任务.

我尝试获取当前时间并进行

I tried getting the current hours and doing

start = fixed_time - 4;
end = fixed_time + 1;
if currentHour< end or currentHour > start{
do some stuff; 
}

但是这忽略了会议记录，如何处理呢? 否则，我如何确定当前时间是否在6:30 AM和11:30 AM之间?

But this ignores the minutes, how to take care of that? Otherwise, how could i figure if the current time lies between 6:30 AM and 11:30 AM?

推荐答案

var currentTime = new Date();
var startTime = new Date(2012, 3, 8, 6, 30, 0, 0); //6:30am today
var endTime = new Date(2012, 3, 8, 11, 30, 0, 0); //11:30am today

if ((currentTime.getTime() > startTime.getTime()) && (currentTime.getTime() < endTime.getTime())
{
   //current time is between start and end so do what you need to do
}

如果您需要使其更具动态性，则可以

If you need it to be more dynamic you can

var currentTime = new Date();
var startTime = new Date();
startTime.setHours(6);
startTime.setMinutes(30);
var endTime = new Date();
endTime.setHours(11);
endTime.setMinutes(30);

if ((currentTime.getTime() > startTime.getTime()) && (currentTime.getTime() < endTime.getTime())
{
   //current time is between start and end so do what you need to do
}

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