Round toTime to Quarter of the Hour

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cityanangelstx2004

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Jun 18, 2004
Messages
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Hello. I am trying to use the following formula to round up to the quarter of the hour. I would prefer that when the total time is 2:11 that the cell will round up to 2:15 and the cell is formated to convert 2:15 to 2.25. I hope this makes sense. If the time is 2:06 then the cell is converted to 2.00.

'Time is calculated in this cell based on cells c13:f13.
r13 =(C13>D13)+D13-C13+(E13>F13)+F13-E13

'This cell is supposed to round up to the closest quarter of the hour.
t13=ROUND(R13*24/0.25,2)*((0.25/24)*24)

At first i seem to get it to work but then it doesn't. :rolleyes: Anyone's help is appreciated. Thank you.
 

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Ok, I'm not sure if this is the best way to handle it, but it seems to work for my testing. Note, I had to round each time entry and then total at the end for it to work.
test_RoundTime.xls
CDEFGHIJKLMN
11MROUND
12INOUTINOUTInOutInOutTotal
138:00 AM12:00 PM1:00 PM5:00 PM8.0012.0013.0017.008.00
148:10 AM12:00 PM1:00 PM5:00 PM8.0012.0013.0017.008.00
158:11 AM12:00 PM1:00 PM5:00 PM8.2512.0013.0017.007.75
168:06 AM12:00 PM1:00 PM5:00 PM8.0012.0013.0017.008.00
178:00 AM12:00 PM1:00 PM5:00 PM8.0012.0013.0017.008.00
188:00 AM12:06 PM1:00 PM5:00 PM8.0012.0013.0017.008.00
198:00 AM12:12 PM1:00 PM5:00 PM8.0012.2513.0017.008.25
208:00 AM12:14 PM1:00 PM5:00 PM8.0012.2513.0017.008.25
218:00 AM12:00 PM1:00 PM5:00 PM8.0012.0013.0017.008.00
228:00 AM12:00 PM1:06 PM5:00 PM8.0012.0013.0017.008.00
238:00 AM12:00 PM1:10 PM5:00 PM8.0012.0013.0017.008.00
248:00 AM12:00 PM1:11 PM5:00 PM8.0012.0013.2517.007.75
Sheet1
 
Upvote 0
I just realized this doesn't solve ALL your problems. I didn't account for the other quarter hours. Maybe it would be better if we used a vlookup table.
 
Upvote 0
Ok, here's how you would do it as a VLOOKUP.
test_RoundTime.xls
OPQR
12VLOOKUP
138:00 AM8:00 AM
148:11 AM8:15 AM
158:15 AM8:15 AM
168:26 AM8:30 AM
178:30 AM8:30 AM
188:41 AM8:45 AM
198:45 AM8:45 AM
208:56 AM9:00 AM
Sheet1


I setup a range like this going all the way up to 5:00 PM and named it myLookup. Then in the formulas I have:
test_RoundTime.xls
CDEFGHIJKLM
12INOUTINOUTInOutInOutTotal
138:00 AM12:00 PM1:00 PM5:00 PM8:00 AM12:00 PM1:00 PM5:00 PM8:00
148:10 AM12:00 PM1:00 PM5:00 PM8:00 AM12:00 PM1:00 PM5:00 PM8:00
158:11 AM12:00 PM1:00 PM5:00 PM8:15 AM12:00 PM1:00 PM5:00 PM7:45
168:14 AM12:00 PM1:00 PM5:00 PM8:15 AM12:00 PM1:00 PM5:00 PM7:45
178:00 AM12:00 PM1:00 PM5:00 PM8:00 AM12:00 PM1:00 PM5:00 PM8:00
188:00 AM12:41 PM1:00 PM5:00 PM8:00 AM12:45 PM1:00 PM5:00 PM8:45
198:00 AM12:40 PM1:00 PM5:00 PM8:00 AM12:30 PM1:00 PM5:00 PM8:30
208:00 AM12:00 PM1:00 PM5:00 PM8:00 AM12:00 PM1:00 PM5:00 PM8:00
Sheet1
 
Upvote 0
If you always want to round up to 15 minutes, try this in T13:

=CEILING(R13,TIME(0,15,0))

Fill down

Denis
 
Upvote 0
This rounds down or up to the nearest 15 minutes:

Code: 
=IF(MOD(R13,TIME(0,15,0))<TIME(0,8,0),R13-MOD(R13,TIME(0,15,0)),CEILING(R13,TIME(0,15,0)))

Denis
 
Upvote 0
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