Enter DateDiff ("n", [date1], [date2]) in the Field Calculator and click Ok. Upon subtraction, we get a fraction. 16 minutes to 30 minutes = 1/2 hour 30. A star's position is fixed in that system and it will be always at the exact same sidereal time that it culminates (as that's the definition of sidereal time). Change the Time format to display a time with or without AM/PM. How To Use The Calculator. From the hour mark to 6 minutes = 0 time paid. 2. Over 7 minutes to 15 minutes = 1/4 hour 15. Press Enter. 2. Now, as previously discussed the time difference is based on the day shift. The general formula for time difference is . 11-21-2013, 08:33 PM #2. Just my my 5ct advice: Use real calc date + time (datetime) as start and end values and every duration (!!!) in hours simply calculates as =A2-A1 formatted by [HH]:MM. eg. For total shift time = (1-C2)+D2. Time Difference Formula. Is there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. In cell B2 type the start time, enter a space, and then type “a” for AM or “p” for PM, and press Enter. Time. ,1) is needed just in case the average is in the range "spanning midnight". Following our example above, 56 hours is our base. Simply subtract the start time from the end time. Example: Start time: 23:50:00 End time: 00:15:00 How would you formulate an equation to determine the duration of time or differnce between the start and end time? In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. Is there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. The calculator below gives a time difference in years, months, days, hours, minutes, and seconds between two time points of two different Earth locations. As you can see from the formula the night end (ne) has been adjusted to consider the next day. Formula To Calculate Time Difference Crossing Midnight - Excel. The time difference formula below always works. In other words, you want the elapsed time or the difference between two times. Use of MOD function ensures that will work even when the time gap passes midnight. Due to it being a negative, it comes up as 'error'. Re: Calculating elapsed time when time crosses over midnight. For example (please see attached spreadsheet): I would like my bread to be done baking at 5:30 am on Day 3. 25 hours for 22:55 till 06:20am and for some reason it's not multiplying the £/hour with the result properly now (giving £1. I have a loan with a variable beginning balance and irregular payments. Do the normal end-time minus start_time, and then add either 0 or 1 back to it by checking if the start_time is greater than the end_time. If I wanted to subtract two military times to get minutes what formula would I use. Duration Process :6 hours. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. . Richard Buttrey. Excel Formula Help To See If Time Falls Between Two Time. 3 Answers. LinkBack URL; About LinkBacks; Thread Tools. Formula To Calculate Time Difference Crossing Midnight - Excel. 67 hours. These formulas assume that 9:00 AM or earlier "spans midnight" -- that is, they are hours "after" midnight, as you have defined it. How do I calculate the time duration in minutes between two times when the first time is before midnight and the second time is after midnight by considering non work hours ? For example, need to calculate the work hours in minutes between 03/17/2021 07:00PM and 03/18/2021 9:30AM the next next day by excluding non working hours (12. Click a cell where you want to locate the calculated result, and then, click Kutools > Formula Helper > Formula Helper, see screenshot: 2. up the decimal fraction and multiply it by 60. Over 7 minutes to 15 minutes = 1/4 hour 15. There are penalty rates which apply at different times. The result shows the current date and time, probably formatted like this: 6/26/2014 9:57. I am trying to calculate the time difference where the times cross midnight. Method 1 Method 2 Both return the wrong time. The ones that cross midnight on to the next day gives me headache because included in the raw data is the start date and start time for the next day's shift. = (A2A3)+A3-A2. the result of the conversion will be displayed in two manners one in single. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. 10pm-7. 8) A1 is the cell the average will be in. Calculating time difference when times are cross midnight. To avoid these problems, you should always treat time intervals as half-open intervals. Inverse Proportionality of Speed & Time: Speed is said to be inversely proportional to time when the distance is fixed. 46 minutes to 60 minutes = one hour. Formula To Calculate Time Difference Crossing Midnight - Excel. To calculate number of days, hours, minutes and seconds between two dates with time zones. to get 10 for a 10 minute difference and 71 for one hour 11 minutes you can use this formula [revised] =MOD (B1-A1,1)*1440. Formula To Calculate Time Difference Crossing. (based on collections) Would like to enter payment and date. 6. The fourth column is a simple subtraction formula taking column three from column two. Formula To Calculate Time Difference Crossing Midnight - Excel. We have a client who will pay using the 1/4, 1/2/ and 3/4 of an hour increments as follows: From the hour mark to 6 minutes = 0 time paid. I have a function which is already compact, i wanted to know if there was better (like a DateTime functionality already included). LSTM L S T M is the Local Solar Time Meridian, calculated by 15º −ΔTGMT 15 º −. To calculate hours worked, enter valid time values into B2 and C2. =DOLLARDE (B2/100,60)-DOLLARDE (A2/100,60) The function will return the break timing in between the pairs of times. In the screenshot below, column C shows the difference between the time in consecutive rows (column. A. The DATEDIF formula takes two date cells and calculates the days between them. Is there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. Excellent, thanks very much, that worked perfectly. If applicable, differences to standard times as a result of DST also. Formula To Calculate Time Difference Crossing Midnight - Excel. Formula is: 29:00 -23:00 results should be 6 hours. " In this case both times belong to the same date and wake_time>bed_time. Basically, we had to apply one of two formulas to compute variable right_hours_slept: (wake_time-bed_time)/3600 if bed_time is "at or after midnight. It wraps from 59 to 00 so the function correctly returns 1. Many countries have more than one time zone. Is there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. 1:00 am. I have two times I want to calculate the difference from: A1 is the time a person went to sleep (ex. I need to subtract the time out from the time in minus a 30 minute lunch break and be able to show if they were under 8 hours worked or over. Then, format the End time and Start time cells like this: h:mm am/pm. The result will be displayed in. If the start date and time is later than the end date and time, the formula nets zero. In the Date & Time Helper dialog box, do the following operations: In the Formula Type drop down list, please select Date option. Duration Process :6 hours. Right-click on the cell and click Format and make sure the cell follows the Text format. You provide the start time, the end time, and the desired interval, and the INTCK function returns the difference in seconds, minutes, or hours. 75,1)*24 =0. , there are a total of 9 time zones used. The Time Duration Calculator will calculate the time that has elapsed/difference between. Refinement is to use 'Date and Time' Format for start and finish, and 'Duration' format for the difference. Received Date & Time: 10/29/2010 3:27:00 PMRe: "Head Count" of time periods crossing midnight Shout if you want to use formula/Named Range approach to adjust the column ranges automatically. To start the conversation again, simply ask a new question. minutes) - (departureTime. If the first number is 16:51(4:51 pm) and the second is 7:52 (7:52 am the next day) I get #### for the return because Excel is seeing it as a negative number. Example: Start time: 23:50:00 End time: 00:15:00 How would you formulate an equation to determine the duration of time or differnce between the start and end time? Hi Guys I would appreciate if someone can assist when a formula that pick the max date even if hours pass midnight, attached a file for reference thanks in advance Mehdi Return min/maxi date time - crossing midnight In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. The MOD (. Calculate the Longitude in Time Units. Is there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. . In the Queries & Connections panel, right-click the “TimeWorked” query and select Reference. So for the purposes of calculation, the time 0100 is actually treated as 2500, 0200 is 2600 and so on. I have tried the function Duration. Hi Dflak, Thanks for your quick reply. Use formula: = (E1+J1)- (C1+I1) we just add the date and time together and subtract the end from start and then format the cell having the formula to show days, hours, minutes. Share. There are several ways to calculate the difference between two times. mehmetcik. Set Time format to calculate average time. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. while i am able to identify when the shift crosses midnight, i am not able to correctly calculate the total number of hours, as 00:00 is tricky, and every formula i tried for hours before midnight, when applied to hours after midnight, throws everything off, and. The simple formula shown above doesn't work if the start time is before midnight and the end time is after midnight. Its direction, height, illumination, and lunar phases calendar. In this moon calculator, you may find out the time of sunrise and sunset. [*] Enter an array formula by pressing ctrl+shift+Enter instead. The bread bakes for a total of 50 minutes The oven needs to be pre-heated 1 hour prior to baking. To get the average time we should follow the steps: In the cell E2 insert function =AVERAGE (B3:B6) Press Enter. (See the time zone converter below and the error-trapping used in the calculation. Creates a Time from local, universal, and custom Time formats. Solution: You have to change to the correct value. anon73440385 May 13, 2021, 11:36am #3. 24 hours is 1, 0. Quick Answer: Format your duration column as Format > number > duration. Thus, the hour from midnight to 1 a. e. . I would like Excel to calculate the amount of time showing full and if need be a half hour. With only a few 00 rows, calculation will be instantaneous. 35)Is there a single formula solution to calculating the number of hours and minutes elapsed between two dates and times? E. For example: Free calculator to get the number of hours, minutes, and seconds. Formula To Calculate Time Difference Crossing Midnight - Excel. 30 minutes to 45 minutes = 3/4 hour 45. There are two approaches that you can take to present the results in the standard time format (hours : minutes : seconds). Excel will now work as follows. . If applicable, differences to standard times as a result of DST also. I'm having a little challenge in a simple table trying to calculate time passed for example from: 22:00 to: 2:00 in the morning. You have therefore earned $75. Get Difference in Seconds. Duration Process :6 hours. Register. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. To clearly see this, change. In this. Now; DateTime tomorrow = new DateTime (today. Let's start with a simple formula that calculates the difference between two times in the same day. Similarly, =ROUND((F2-E2)*24*60)Calendar Generator – Create a calendar for any year. Received Date & Time: 10/29/2010 3:27:00 PM. 30AM to 7. In order to use this calculator, you should enter the values of both specific time points in hours, minutes, and seconds. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. Formula is: 29:00 -23:00 results should be 6 hours. Formula To Calculate Time Difference Crossing Midnight - Excel. #1 I have several sheets with columns of just times (no dates). Convert the Longitude to degrees. The problem is it goes haywire when you. Formula To Calculate Time Difference Crossing Midnight - Excel. Share. The World Clock – Current time all over the world. The next thing to do is to enter the time we want to subtract to or the subtrahend. In that case you need to: Add a numeric field (short, long, float, double) to your table. Note that according to this approximation cos i equals −1 when the semi-major axis. Example: Start time: 23:50:00 End time: 00:15:00 How would you formulate an equation to determine the duration of time or differnce between the start and end time? If I calculate TAT for this time period it should show me 1 hour 33 minutes, why because business hours are closing by 5:00 PM on 10/29 so it should not calculate duration after 5:00 PM to until 08:00 AM on next day, however 10/29 is Friday so formula should calculate the duration from 10/29 Friday 3:37 PM to 10/29 5:00 PM and again it should. Duration Process :6 hours. This formula will help you calculate the hours difference between two times, even when the end time crosses midnight (Ex 7pm - 2am). "1d 2h 3m 4s + 4h 5s - 2030s" is an example of a valid expression. Ask Question Asked 3 years 11 months ago. Over 7 minutes to 15 minutes = 1/4 hour 15. I don't need it to show the negative symbol but difference in HH:MM format. In the third cell I enter this formula, =INT ( (C163-B163)*24). Enabled = true; Don't forget to disable the timer when handling the tick. Such as 9 am to 5 pm comes out as 8 hours. 4: Aug 25, 2007: Countifs with different restrictions: 1: Nov 29, 2012: Averaging Duration of Time: Duration Longer than 24hr: 2: Apr 10, 2008: Convert times to text string: 3: Apr 21, 2010 [NEWBIE] date/time diff: 4: Jun 25, 2009: formula to calculate time difference crossing midnight: 3: Aug 17. Rename the new query “TotalTime”. Re: Calculating difference in time after midnight. Formula To Calculate Time Difference Crossing Midnight - Excel. Now for d1. Example: Start time: 23:50:00 End time: 00:15:00 How would you formulate an equation to determine the duration of time or differnce between the start and end time? This formula will help you calculate the hours difference between two times, even when the end time crosses midnight (Ex 7pm - 2am) I am trying to calculate the number of minutes difference between times (times are military format) which sometimes cross over midnight. Start Time (8:00am). Calculate time difference crossing midnight This formula will help you calculate the hours difference between two times, even when the end time crosses midnight (Ex. . Hello There, I am a basic to mid level excel user and I have been tasked with creating a "border crossing calculator" based on arrival time to a US border town factoring in the hours of operations (open/close times) for commercial traffic at said border. You cannot calculate in this manner to a date format field. while i am able to identify when the shift crosses midnight, i am not able to correctly calculate the total number of hours, as 00:00 is tricky, and every formula i tried for hours before midnight, when applied to hours after midnight, throws everything off, and vice-versa. But if you want an event at 12:03, just substitute DateTime. 1. keme May 13, 2021, 11:50am #4. Similarly I like to do those like this. 0 BASIC SIGNAL TIMING PROCEDURE AND CONTROLLER PARAMETERS. Here you can see the same difference, one formatted as automatic, which defaults to time, the other is formatted as a duration: The formula =B2-A2+(B2<A2) returns the difference between the two times, and adds 1 day if minuend is less than the subtrahend, it adds 0 days otherwise. Simple duration calculation When start time and end time occur in the same day, calculating duration in hours is straightforward. In Excel I have been trying to find an easier way to calculate a time difference where the times. Step 1: First, select cell E5 to subtract military time. These are the ways by which we can calculate the interval timings from In and Out timings which are formatted as military timings. About Time Difference Calculator. TotalMilliseconds; You can use this to set a Timer: timer1. If Function In Time Range - Excel. ; Divide the difference by the average: |a - b| / ((a + b) / 2). Formula To Calculate Time Difference Crossing Midnight - Excel In Excel I have been trying to find an easier way to calculate a time difference where the times cross. Duration Process :6 hours. 46 minutes to 60 minutes = one hour. AddDays (1); double remaining =. Calculating Time Difference Between Two Days Combined With IF Formula? Calculating Date & Time Difference: Result In Hours Only; Mean By Day Of The Week If After A Certain Time And Before Midnight. Sample Data for Calculating Elapsed Time in Excel. Hi all, i have a start time (from) and and end time (to) of a shift that can cross midnight. You have to account for crossing midnight. =1440*MOD (B1-A1,1) If by "military time" you mean that your times don't have colons, e. having a bit of a problem with times crossing midnight. Example: End time = 1450, Start time = 1225. 2. 6. To apply the custom time format, click Ctrl + 1 to open the Format Cells dialog, select Custom from the Category list and type the time codes in the Type box. Type the other start and end times for your friends Joy and. To solve for speed or rate use the formula for speed, s = d/t. Pivot Chart Colors- How To Keep From Changing When Data Elements Are Added/removed? - Excel. I'd like the time difference to be in minutes (but that can be done in a separate column formula). Method 2: Subtract the years. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. the formula will be in cell B1. TimeOfDay) Share. e. In other words, everything to the left of the decimal is date and everything to the right is time. e. If I wanted to subtract two military times to get minutes what formula would I use. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. increases by about 15° per hour, equal to one hour of R. Enter this formula: =(B2-A2+(B2<A2))*24 ( A2 is the earlier time, B2 is the later time, you can change them as you need) into a blank cell which beside your time data, see screenshot: One way which results in hours and decimal of an hour is. As such, you may want a column for "total hours" to make a few simple formulae for calculating (and makes checking a bit simpler). In this approach, we assume we just need to compute the difference between the two dates as whole years, as is the case when you want to compute your age as at the last birthday. 3. Time_In is when they started work. For example, to create a time value of 3:30 PM, you can use the formula =TIME (15, 30, 0). Follow. They will become Cell > Data Format > Automatic with Date and Time (Date None). Find time duration in hours, minutes and seconds between any two times. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. You can use the TIME function to add or subtract up to 60 seconds: =Start time + TIME (0, 0, N seconds) For example, add 30 seconds: =A2+TIME (0,0,30) Or substitute 30 seconds: =A2-TIME (0,0,30) To calculate over 60 seconds, use simple maths:As you can see in image below : SECOND ROW = 40 minutes. Start. Possibly the most elegant and simplest solution is the one in this answer mentioned by fixer1234 in this comment: =MOD (B1-A1,1) Note that it assumes that both values are time values only (or that the date part is to be truncated), i. Formula To Calculate Time Difference Crossing Midnight - Excel. The MOD functions does not work if you use 24 hr / military clock, as it returns 17:30 instead of 06:30 between finish and start. By belle08 in forum Excel General Replies: 4 Last Post: 01-27-2014, 03:47 PM. Is there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. Formula To Calculate Time Difference Crossing Midnight - Excel. A good thing to remember is that times are always a fraction of 1. Select the data range for the table. Over 7 minutes to 15 minutes = 1/4 hour 15. To calculate total hours between start and end time, the formula in D5 is: = MOD (C5 - B5,1) This formula is explained in more detail here. Is there a way to create a formula that if it passes 2400 hrs that it can make the necessary calculation. Emplyee's can work night shifts (ie across midnight). Great question! I think for calculation purposes, a two hour buffer is appropriate for our purposes. 6. - Free Excel Help. Here is one way: I put the target "sleep at" time in B1. Remember that negative time values are displayed as #####. Time. Subtracting Time - From Before Midnight To Next Day; Text To Time Then Give Total After Midnight; Timesheet: Calculate Time Within A Period When. This function is useful in formulas where you need to calculate an age. After the ‘if’ word, we’ll start typing out the condition itself – the ‘Start Work’ time (the value in cell C7) is greater than the ‘End Work’ time (the value in cell D7), which is true for the working time that spans midnight. and then update the difference every second. like System time :- 01:00:00 pm manual time :- 12:50:00 pm ans :- 00:10 when clock reach 01:00:00 pm then 00:11 when clock reach 01:01:00 pm then 00:12 when clock reach 01:02:00 pm and so on. A. g. Hello everyone, I need some help. Keeping the format as h:mm means the result corrupts once it reaches 24:00. In column P I. I have tried three types of formulas with the same result: =TEXT(F11-E11,"h")Emplyee's can work night shifts (ie across midnight). 3 Use of the NETWOKDAYS Function. Greenwich Mean Time (GMT) is the local mean time at the Royal Observatory in Greenwich, London, counted from midnight. For example lets say on April 31st I have a time of 23:30 and on May 1st I have a time of 00:22. . Calculating Time After Midnight - Hi I am trying to make a formula for a work timesheet. Re: Calculating time difference over midnight! Here is how I do it to get over the midnight as well as being able to add a meal break. Here is the formula I am using to calculate the work week for our other employees who work duing the day time hours, but I need help in adjusting it for our overnight shift. However whenever I pass midnight it is not calculating properly. 5 hours. 000000. The calculator had two major field for start date time and end date time. Start. 1 only needs to be added if A2A3 otherwise you get 24 extra hours when. 🔗 Steps: Type the following formula on cell D5. I have timestamps in column A from A5 onward. Bij this code you can calculate the difference even over night. To correctly calculate elapsed time I use seconds divided by 60 for minutes and milliseconds divided by 1000 for seconds. I need to be able to determine if a time range intersects the other time range and by how much and then sum the total number of minutes of that intersection. 2300 and 0815 then you can use this variation on the second formula. . Next, right-click the cell, choose “Format Cells,” and pick “General. this formula gives a Sun-synchronous inclination of 98. I cannot figure out the correct formula to complete this. In the third cell I enter this formula, =INT ( (C163-B163)*24). Excel will now work as follows. Formula To Calculate Time Difference Crossing Midnight - Excel. 1. Start. Using the TEXT Function to Calculate Hours Between Two Times in Excel. Each gets 30 minutes for breaks which is not paid. I know @Paul Newcome has skills when it comes to calculating time. Lines of longitude are imaginary lines that travel north to south along the. Formula To Calculate Time Difference Crossing Midnight - Excel. Countdown to Any Date – Create your own countdown. There’s a specific formula to total hours worked past midnight in Exce. First, we’ll use the CDate function of VBA to convert the strings to times. 5 hours. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. Time differences between time zones are simple to work out due to the Universal Time Coordinated (UTC). To get the correct calculated result between two times over midnight, you can apply the following formula: 1. Please see Creating a custom time format in Excel for the detailed steps. In one cell I enter the "start time", i. Start. Estimating Elapsed Time in Excel Using the TODAY, NOW, NETWORKDAYS Functions. 30 minutes to 45 minutes = 3/4 hour 45. Note: AM is used for times in the night and morning. com to calculate time difference between two clock times. This cell will show the number of days between your specified dates. All you need to do is to use the following formula. Let me show you the process. By using the ##":"##":"## code it doesn't give me the right answer. Write down the times on a sheet of paper using the local times for the airport. Show Printable Version;. (This is the 24 hour clock format but recognising that something can run for longer than 24 hours or past the midnight date change) then add 24:00 to the later time. Duration Process :6 hours. Thank you for the quick reply bebo021999. I want to calculate the number of hours done within 8am till 18:30pm and 18:30pm to 8am. Calculating time without using time functions. All you need to do is to use the following formula. Formulas: Results:. Duration Process :6 hours. That's just a *fact*, not a bug in the software! If you will be dealing with times spanning midnight, you will be mired in ambiguity unless you store the date and time. Here's an example of how to calculate a time difference in Google Sheets: Start Time (A1): 8:00 AM. b Mauritius and the Seychelles are to the east and north-east of Madagascar respectively. time-dep. On Wed, 19 May 2010 08:59:01 -0700, Norm wrote: I have read all the other threads on this subject and they work fine for me untill I need to cross midnight and the value is the time subtracted from 24 here are the cells: Date Store Actual Arrival Time Est Arrival Time Variance 4/6/2010 33369 11:26:00 PM 12:27:00 AM -22:59 Can someone let me know. The sun's position is irrelevant to when a star will be in its meridian; the Sun's coordinates in the RA/dec grid does change over the year. 2 Use of the NOW Function. Therefore, dividing the (positive) difference of the SAS time values (i. play with start and end. Looking at this example, you might wonder why C10 works, but C11 doesn’t. PM is used for times in the afternoon and evening. Yes, just use datediff and dateadd functions to strip the time from any date, then add a fractional portion of a day to that number. 45 as the difference in midnight minus 8/1/2019 1:10 PM. Formula To Calculate Time Difference Crossing Midnight - Excel. Duration Process :6 hours. 6. times don't go over midnight. Note down the departure and arrival times. Duration Process :6 hours. Duration Process :6 hours. Subtracting 30 Minutes From Time In And Out For Schedule - Excel. Format the cell containing the formula like this: Format > Number > More Formats > More date and time formats, delete "second" and :. 1. Full 24 examples for 2 time zones. Percent Difference Equations Formulas Calculator from AJ Design Software, last visited 22, Feb. How do I calculate this time. 10:43 PM); A2 is when the person woke up (ex. (based on collections) Would like to enter payment and date. Thanks! Posted by Aladin Akyurek on July 18, 2001 9:53 AMIs there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. When times cross midnight, the problem becomes more tricky, since the end time will often be less than the start time. Year, today. etc. Add 60 to the number of minutes in the ending time, and subtract 1 hour from the hour portion of the ending time. . Next. Type in the comma and we’ll move on. If the start time is less than the. Example: Start time: 23:50:00 End time: 00:15:00 How would you formulate an equation to determine the duration of time or differnce between the start and end time?There are several ways to calculate the difference between two times. how do i write the formula and account for midnight crossover. To apply the custom time format, click Ctrl + 1 to open the Format Cells dialog, select Custom from the Category list and type the time codes in the Type box. Formula To Calculate Time Difference Crossing Midnight - Excel. I could only find tips on formatting the result of such substracting in the Excel Help file. How to Calculate Elapsed Time in Excel: 5 Easy Ways. In Excel I have been trying to find an easier way to calculate a time difference where the times cross midnight. Basically, we had to apply one of two formulas to compute variable right_hours_slept: (wake_time-bed_time)/3600 if bed_time is "at or after midnight. G1 cross midnight, which I know is the problem,. 1am = 1hr and 11pm = 23hr, (1 + 23) / 2 = 12. Question/Issue: Need Formula to calculate number of night hours worked in a shift, using 4 values (Detailed below). HTH. The graph has two lines, one is Blue and other one is Orange. In Excel I have been trying to find an easier way to calculate a time difference where the times. Is there any formula to calculate Start time to End time with excluding lunch time? Here is example : Lunch time :12:00pm to 1:00pm. 92 for 7. The international date line (IDL) is an imaginary line that runs along the Earth's surface from the North Pole to the South Pole in the middle of the Pacific Ocean. I wrote a formula that calculates the time difference between two datetime cells in Google Sheets. For example, I'll try to use =AVEREAGE () on the times 1:00am and 11:00pm and it will give me 12:00pm.