Formula for adding hours worked from one start time to another (am/pm)

[Northwest_Plumbing]

First time user of the community. Probably a very simple question but, how do I caculate the total hours when, in Cell #1 I have the start time (e.g. 8:00 am) and the other cell I have the end time (5 pm.)?

[#2]

@Northwest_Plumbing 

That's = endTime - startTime

assuming both are for the same day

[#3]

@Sergei Baklan 

Thank you, I tried that and here is the result: 

Time In	Breaks	Time Out	Hours
8:00:00 AM	0.50	6:00:00 PM	-0.42

It should total: 10 hrs??

[#4]

@Northwest_Plumbing , change the number format to "hh" to get the time in hours. 

[#5]

@TheAntony 

Thank you Anthony. That helped to make it look better but, I still haven't found a formula to add the hours from start time to end time?

[#6]

@Northwest_Plumbing 

Operate with time as with any numbers. Actually in Excel days are equivalent of integer numbers where 1 is Jan 01, 1900 and time is decimal part of the number where 1 hour is equal to 1/24.

Just apply time format to the result and take into account time could not be negative.

[#7]

@Northwest_Plumbing 

even if the solution of the others are more elegant .. I send my small solution for quick processing :)

sry in advance for my additional intervention

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