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Time Until Calculator

This time until calculator will help you identify the length of time from now to any specific date and time in the future. The result will be available in hours, minutes, and seconds.

With the time until calculator, you can also see a countdown (or time left) in hours, minutes, and seconds until that particular time.

 

How do you calculate the time until a date or a specific hour?

To find the time until the date, you must subtract the end date from the start date.

When discussing time, we must deduct the current time from the future.

 

How do you calculate manually a time interval?

The easiest way is to explain the reasoning for calculating a time interval by doing the steps for a concrete example: How long until 2:40 PM?

Let’s say now is 10:43 AM, and you want to calculate the time until.

Here are the simple steps to find the answer for the time between two times:

  1. Determine the start and end times
    In our case, the start time is 10:43 AM, and the end time is 2:40 PM

  2. Convert the timings to 24-hour format
    When converting from 12 to 24-hour format, add 12 to the PM times.
    2:40 PM becomes 14:40
    AM times remain the same 10:43

  3. Calculate the time difference
    Here, we subtract the hours from the end time to the start time, and the same is true for the minutes.
    14:00-10:00 = 4 hours.
    40-43 = -3 minures

  4. Handle any borrow or carry-over
    If the result is negative, add 60 minutes and subtract 1 hour.
    4:00 – 00:03 = 3:57

  5. Final result
    From 10:43 to 2:40 PM, there is a 3:57, or 3 hours and 57 minutes difference.

 

How to calculate the time until a date?

To compute the time until a specific date, follow these steps:

  1. Identify the start and end dates and times.
  2. Count the days in between the dates
  3. Calculate the time difference between the two times.

For example, from Sept 12, at 10:00 AM, how long will there be until Sept 27 at 5:30 PM?

  1. Identify the start and end times and dates:
    Times 10:00 AM and 5:30 PM
    Dates Sept 12 and Sept 27
  1. Count the days in between
    To calculate the number of days difference, we subtract from the end date the start date:
    27-12 = 15 days difference.

  2. Calculate the time difference
    We subtract the end time from the start time to calculate the time difference.
    5:30 PM - 10 AM is not very obvious, so we converted the PM time to 24-hour format
    17:30 – 10 = 7:30
    So, between 5:30 PM - 10 AM, we have 7 hours and 30 minutes
  1. The result.
    We have 15 days, 7 hours, and 30 minutes from Sept 12, at 10:00 AM, until Sept 27, at 5:30 PM.

 

How many hours until tomorrow?

Until tomorrow there is 12 hours, 17 minutes and 43 seconds time left.

 

How long until popular times?

Time UntilDuration
7:30 AM19 hours 47 minutes
9:00 AM21 hours 17 minutes
10:00 AM22 hours 17 minutes
11:45 AM2 minutes
12:00 PM17 minutes
1:00 PM1 hours 17 minutes
1:30 PM1 hours 47 minutes
2:00 PM2 hours 17 minutes
2:05 PM2 hours 22 minutes
2:10 PM2 hours 27 minutes
2:15 PM2 hours 32 minutes
2:20 PM2 hours 37 minutes
2:30 PM2 hours 47 minutes
2:40 PM2 hours 57 minutes
2:45 PM3 hours 2 minutes
2:45 PM3 hours 2 minutes
3:00 PM3 hours 17 minutes
3:05 PM3 hours 22 minutes
3:10 PM3 hours 27 minutes
3:15 PM3 hours 32 minutes
3:20 PM3 hours 37 minutes
3:25 PM3 hours 42 minutes
3:30 PM3 hours 47 minutes
3:40 PM3 hours 57 minutes
4:00 PM4 hours 17 minutes
4:30 PM4 hours 47 minutes
5:00 PM5 hours 17 minutes
6:00 PM6 hours 17 minutes
7:00 PM7 hours 17 minutes
10:00 PM10 hours 17 minutes
11:30 PM11 hours 47 minutes
12:10 AM12 hours 27 minutes