Calculating Time Duration with In/Out

jl.furstenberg

Hello,

I have reviewed several posts on calculating time worked from in/out time entries. I tried to use one of the formulas previously presented (see screenshot), but I keep getting an Invalid Operation error. If it helps, I am trying to calculate time worked using the 12 hour format.

Julie Fortney

@Paul Newcome Paul, I've looked at several of your timekeeping solutions in the Community, so I think @jl.furstenberg's question might be right up your alley.

Paul Newcome

The problem is where you are subtracting

([Sun_out1]@row - [Sun_in1]@row)

Those are both text values and as such cannot be used in mathematical calculations. If that was possible, there would be no need for all of the workarounds.

There should be something in the below thread for you:

Formulas for Calculating Time

Paul Newcome

Jun 8, 2020

I have decided to create a post that consolidates all of the different time based solutions that I have put together.

Some of these solutions can be made more efficient or condensed into fewer but larger formulas. I am still going through these working on making them more efficient and tweaking them, but all of them have been used as working solutions.

I thought it would be helpful to have them all in one place instead of spread out.

I welcome all feedback, suggestions, and additions.

I'll start by posting the published sheets to the solutions. If it is a solution to another community post, it will have a hyperlink to the original post which may help with context. Some are 12 hour clocks and others are 24 hour clocks. Some involve dates and others do not.

I will also try to post various tips and tricks as I think of them as well such as:

It is easier to convert the hours for 12 hour times to 24 hour times before attempting to do further calculations:

=VALUE(LEFT([Time Column]@row, FIND(":", [Time Column]@row) - 1)) + IF(CONTAINS("p", [Time Column]@row), IF(VALUE(LEFT([Time Column]@row, FIND(":", [Time Column]@row) - 1)) <> 12, 12), IF(VALUE(LEFT([Time Column]@row, FIND(":", [Time Column]@row) - 1)) = 12, -12))

Calculating Time Worked for Employees

Can you calculate time in Smartsheet?

Conversion of timezones (Solved Formula Included)

Date/Time/Year

Flagging a Date and Time Overlap

How do I create time of day columns?

Need to create a "shift" column from a time column

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jl.furstenberg

Thank you!!