![]() Therefore the total time is 5 hours and 45 minutes. The hour values on addition we have 2 hours + 3 hours = 5 hours, and the sum of the minute values is 15 minutes + 30 minutes = 45 minutes. Here we add the hours first separately and then the minutes separately. Let us understand by adding two simple time values of 2 hours 15 minutes and 3 hours 30 minutes. Or 1 hour is equal to 60 minutes, 1 minute is equal to 60 seconds. Here the addition of 1 unit is made of 60 subunits. The addition of time is slightly different from the addition of another kind of quantity. Therefore the sum of the minutes is equal to 1 hour and 30 minutes. This 90 minutes can be converted into 60 minutes, and 30 minutes. This addition is equal to 50 + 40 = 90 minutes. Let us understand this with a simple example. Hence the time more than 60 minutes are converted to hours. Here the unit of 60 minutes is equal to 1 hour. The addition of minutes is similar to any other addition. This value is equal to 1 minute and 15 seconds. If we add 40 seconds and 35 seconds, we have 40 + 35 = 75 seconds, which is equal to 60 seconds and 15 seconds. But here for value beyond 60 we have to convert the seconds into minutes. Those added 60 minutes which in turn considered an hour are removed from the total hours.Īdding seconds is similar to any other addition. While subtracting minutes, if the minutes are negative then add 60 minutes with them and consider their total as minutes.Those removed 60 minutes are converted to an hour and added with hours. While adding minutes, if it goes beyond 60, then remove 60 and consider the remaining minutes as total.Similarly, subtract all the hours and minutes to calculate the time. Add all the hours and minutes to calculate the total time.Let us look at the following tips and tricks on time. ![]() So, we have learned to add and subtract time. Therefore we have 5 hours and 25 minutes from 6:45 a.m to 12:10 p.m. So, we proceed with the following subtraction. Now, we have 70 minutes which is more than 45 minutes. ![]() By borrow 60 minutes from 1 hour, we have 12 hours 10 minutes is equal to 11 hours, 60 minutes + 10 minutes, or 11 hours and 70 minutes. So, for carrying on subtraction, we need to borrow minutes from 12 hour and give to 10 minutes. We observe here that 45 minutes is more than 10 minutes. Let us look at another example to subtract 6:45 a.m from 12:10 p.m. The result can be written together as 2:10. First, let us subtract the hours 7 - 5 = 2, then we can now subtract the minutes 55 - 45 = 10. Let us look at this with a simple example. Further, write the resultant answer of hours and minutes. First, subtract the hours, and then subtract the minutes. ![]() For this, we follow some of the simple steps. The subtraction of time is almost the same as the addition of time. The same addition procedure is followed in a 12-hour clock also. In a 12-hour clock, midnight 12 a.m is considered as the start of the day. Therefore writing the hours and minutes together we have 21: 25.Īddition of Time - 12 Hour Clock: The 24-hour clock is divided into two periods as a.m (anti-meridiem) and p.m (post-meridiem). Adding this 1 hour to the earlier 20 hours we have 21 hours. The 85 minutes is equal to 60 min and 25 minutes. Now adding the minutes we have 30 + 55 = 85. First adding the hours we have 2 + 18 = 20. Let us look at another example of adding time in a 24-hour format. Add 2:30 and 18:55. We first add the hours of 21 + 2 = 23 hours, and then add the minutes as 15 + 30 = 45 minutes. In some of the countries, it is referred to as railway time.Īdd 21:15 and 2:30. In the United Kingdom, the 24-hour clock is referred to as continental time. Therefore the time is 11 hours and 10 minutes or 11:10.Īddition of Time - 24 Hour Clock: The 24-hour clock is preferably followed in the United States and is called military time. The 70 minutes can be written as 60 minutes + 10 minutes, or 1 hour and 10 minutes. ![]() These 70 minutes cannot be taken directly. Instead, we must convert that into hours by subtracting the additional minutes. In some cases, if the added minutes are more than 60 which cannot take it directly. Further writing the calculated hours and minutes together we have 10:25. Further adding the minutes 10 and 15 is equal to 25. As an example let us add the set of two times, 9:10 and 1:15. Further write the time obtained in hours: minutes format. Now add the minutes of the two given times. First, add all the hours of the two times. Adding time by hours and minutes is very simple if we know their conversion. ![]()
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