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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 20 hours, 50 minutes and 13 seconds time left.

 

How long until popular times?

Time UntilDuration
7:30 AM4 hours 20 minutes
9:00 AM5 hours 50 minutes
10:00 AM6 hours 50 minutes
11:45 AM8 hours 35 minutes
12:00 PM8 hours 50 minutes
1:00 PM9 hours 50 minutes
1:30 PM10 hours 20 minutes
2:00 PM10 hours 50 minutes
2:05 PM10 hours 55 minutes
2:10 PM11 hours
2:15 PM11 hours 5 minutes
2:20 PM11 hours 10 minutes
2:30 PM11 hours 20 minutes
2:40 PM11 hours 30 minutes
2:45 PM11 hours 35 minutes
2:45 PM11 hours 35 minutes
3:00 PM11 hours 50 minutes
3:05 PM11 hours 55 minutes
3:10 PM12 hours
3:15 PM12 hours 5 minutes
3:20 PM12 hours 10 minutes
3:25 PM12 hours 15 minutes
3:30 PM12 hours 20 minutes
3:40 PM12 hours 30 minutes
4:00 PM12 hours 50 minutes
4:30 PM13 hours 20 minutes
5:00 PM13 hours 50 minutes
6:00 PM14 hours 50 minutes
7:00 PM15 hours 50 minutes
10:00 PM18 hours 50 minutes
11:30 PM20 hours 20 minutes
12:10 AM21 hours