# Difference between two times

#### de11

##### New Member
I am using the following formula to calculate the difference between two times :

if(K5>=K4,K5-K4,K4-K5)

however when K5 is less than K4 formula returns #############

Not sure what I am doing wrong had it working earlier, unless a format has now changed??
The times never cross over 24hrs.

### Excel Facts

Workdays for a market open Mon, Wed, Friday?
Yes! Use "0101011" for the weekend argument in NETWORKDAYS.INTL or WORKDAY.INTL. The 7 digits start on Monday. 1 means it is a weekend.
That means a negative date / time value, although your formula should allow for that.

Try

=ABS(K5-K4)

as an alternative, see if that works or gives the same ######## result

Thanks that has provided the difference.

If I wanted to determine which of the two times were greater how can I do this if I have a negative date/time value?

Sorry, I'm not sure if I'm following that correctly,

Are you looking for something to say, for example, "K5 is greater" ?

I have two times K4 = 23:04:59 (which based on your last answer maybe the negative date/time. K5 = 23:00

=if(K4>=K5,"Okay",ABS(K5-K4)), I was expecting this to return "Okay" but I get the time difference. Which is an improvement as before I had ############

That should return "Okay", if the time in K4 is negative then you should see it prefixed with - or maybe in red text depending on your format settings.

What result do you get from =TEXT(ABS(K4-K5),"[h]:mm:ss")

I am currently getting the difference in minutes returned.

However when the argument is met I want it to return "Okay" but still get the difference.

Checked on negative time and changed to 1904 date system but no improvement.
One of my times is a date/time and the other just a time.

One of my times is a date/time and the other just a time

That makes a big difference, date and time values are based on decimals, date to the left of the decimal point, time to the right.

A time with no date will have a decimal value between 0 and 1, current dates have a value of close to 41,000 so when there is a date and time it will always be much greater.

To get a true result you need to isolate the time value from the cell with the date using a formula like

=IF(MOD(K4,1)>=MOD(K5,1),"Okay","Not Okay")

Awesome now working a treat....as they say knowledge is power!

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